Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

91,330 questions, page 3
1. algebra

Requesting help. (I must reckon, that X is a variable, and y is y-intercept) Q: Try to use the substitution method to solve the the linear system y=3x an y=3x-7. What do you notice? A) What happens when you graph it? B) Explain why there is no solution.

asked by Michael on October 6, 2008
2. Math - Algebra

A. Solve the following quadratic equations. Make sure to show all your work. Do not use any method (e.g. factoring, completing the square, quadratic formula, graphing) more than twice. Use the graphing method at least once. 1. 3x+2 + 11x -20 =0 2. x2 + 3x

asked by Angela Again! on January 9, 2007
3. Math

When you solve the system shown by the elimination method, which statement is true? y + 3x = 10 −y − 3x = 10 A. You eliminate y; the sum of the coefficients of y is zero. Then, you can solve for x. B. There is no solution; x and y are eliminated and

asked by Albert on January 5, 2016
4. algebra

Solve the system using elimination X+3y=5 4x+4y=4 I tried to work this problem and this is what I came up with. x+3y=5 x+4y=20 7y=15 y=7/15 and x= (5+y)/4 (5+7/15)/2 2/15 x=2/15 x=2/15, y=7/15 I would like for someone to check to see if it is correct.

asked by angela on July 15, 2013
5. Math

Can you please check my work since my professor wont. Thanks 50% of 45 solution=90 Predict the height of a woman who's humerus is 40 cm long using H(x)=2.75x+71.48 solution= 181.48cm Trains A and B are traveling in the same direction on parallel tracks.

asked by Mio on March 23, 2011
6. math

2. Simplify. Please be sure to show all of your work. -3(-9) – |-5 – 3 3. Simplify. Please show all of your work 9c^3+7c-(3c^3-12+c) 4. Solve 4x- 3(5x-8) =23-9(x+2) . Please show all of your work 5. Solve the following equation for z. Please show all

asked by christine on August 15, 2011
7. Math

I am stuck on trying to figure out how to do this question. Could someone please show me 5 necessary steps ? Thank you. Here is how the assignment question is worded. Select any two integers between -12 and +12 which will become solutions to a system of

asked by Tiffany on February 9, 2011
8. Linear Equations

Can you please help solve this equation using the substitution method? I have tried and keep getting that X and Y = 7/2, but the answer in the book states no solution, inconsistent system. What am I doing wrong? Please help! Solve the systems of equations

asked by Mia on March 2, 2010
9. Math Homework

Hello! I need help with these math questions, thanks! :) 1.) Solve the system by substitution. 5x + 2y = -17 x = 3y 2.) Solve the system by substitution. x/3 + y = 4/3 -x + 2y = 11 3.) Solve the system by elimination. 2x - 3y = 0 2x + 6y = 3 4.) Solve the

asked by Beni on December 7, 2013
10. math

Look at the system of equations below. 4x minus 5y equals 3 line break 3x plus 5y equals 13 A student makes this argument: Elimination is the best method for solving this system because the y-coefficient in the first equation is the opposite of the

asked by Anonymous on March 21, 2019
11. Algebra

Solve this system of linear equations. * Used the substitution method 3x - y = 8 4x - y = -15 ----------------------------------------- WORK y = 3x - 8 4x - (3x - 8 ) = -15 4x - 3x + 8 = -15 x + 8 = -15 x = -7 3x - y = 8 3(-7) - y = 8 -21 - y = 8 -y = 29 y

asked by Lucina on January 20, 2015
12. Algebra

3. What would be the simplest way to solve the system? y=1/2x 2x + 3y = 28 A. Graphing B. Substitution***** MY ANSWER! C. Elimination D. Distributive 4. What is the solution of the system? y=-3x 2x + 3y = 6 A. (2,6) B. (-1,3) C. (-2,6)*****MY ANSWER! D.

13. Maths

solve by Gauss elimination x+y-z=2 -x+3y +z=3 4x-y+3z= 5 show work for each step please

asked by Chris William on March 29, 2011
14. Math Check

Hi! Can someone check my answers? Thanks! Directions: Solve each system by using the elimination method. Make sure to write your answer in (x,y) form. 1.) 3x-5y=2 2x+5y=13 2.) 3x+11y=4 -2x-5y=9 My answers: 1.) (3,7/5) 2.) (-17,5)

asked by Heather on March 4, 2015
15. algebra2

Using complete sentences, explain which method you would use to solve the following system of equations and why. In your answer, include the solution to one of the variables and how you found it using the method you chose. 2x + y + z = –7 x – 3y + 4z =

asked by Rayniya on November 22, 2010
16. math/116 algebra

Application Practice Answer the following questions. If appropriate, use Equation Editor to show your work. First, save this file to your hard drive by selecting Save As from the File menu. Click the white space below each question to maintain proper

asked by ruth on March 21, 2011
17. How do I do this.?(Math.)

Use the Substitution method to solve the system of equations. y - 2x = -5 3y - x = 5 Solve one of the equations for x or y. Let's solve the first one for y: y - 2x = -5 y = 2x - 5 Now let's substitute 2x - 5 for y in the second equation to solve for x:

asked by Margie on February 5, 2007
18. algebra

Solve by elimination method. 2r-5s=-33 5r+2s=48 Solve by substitution method. 5x+6y=5 x-9y=40 I always get these two confused... can someone please help me with these two problems?? I would really appreciate it..

asked by Anonymous on November 11, 2009
19. math

Solve by elimination method. 2r-5s=-33 5r+2s=48 Solve by substitution method. 5x+6y=5 x-9y=40 I always get these two confused... can someone please help me with these two problems?? I would really appreciate it..

asked by Amanda on November 11, 2009
20. math

Solve by elimination method. 2r-5s=-33 5r+2s=48 Solve by substitution method. 5x+6y=5 x-9y=40 I always get these two confused... can someone please help me with these two problems?? I would really appreciate it..

asked by Amanda on November 11, 2009
21. Math 3

If you want to be eligible for partial credit, please show your work. Solve the following system of equations using any method. y=1/2x+3 y=1/3x-2 Try substituting the equations. if y=1/3x-2, then 1/3x-2 = 1/2x+3 Solve for x, then plug your solution in for

asked by Francheska on November 7, 2006
22. Algebra/math

I have a few problems I need you to take a look at and tell me if I arrived at the right answer. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and -6 for x I got these as my ordered pairs to graph (3, 1), (-6,

asked by shane on January 6, 2010
23. Math/Check

I have a few problems I need you to take a look at and tell me if I arrived at the right answer. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and -6 for x I got these as my ordered pairs to graph (3, 1), (-6,

asked by S on January 7, 2010
24. algebra

I have a few problems I need you to take a look at and tell me if I arrived at the right answer. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and -6 for x I got these as my ordered pairs to graph (3, 1), (-6,

asked by shane on January 7, 2010
25. Algebra

I have a few problems I need you to take a look at and tell me if I arrived at the right answer. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and -6 for x I got these as my ordered pairs to graph (3, 1), (-6,

asked by Shane on January 6, 2010
26. Algebra/no response yesterday

I have a few problems I need you to take a look at and tell me if I arrived at the right answer. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and -6 for x I got these as my ordered pairs to graph (3, 1), (-6,

asked by Anonymous on January 7, 2010
27. College Math II

Solve by any method. x(x + 1) = 12 I am not sure what method to use to show my work and figure out the answer. Can someone help me understand this problem. Thanks.

asked by Lori on November 21, 2009
28. Substitution Method-Plz help

Use the Substitution method to solve the system of equations. x + y = -4 x - y = 2 solve for x in the second equation. x= y+2 Put that in for x in the first equation: x+y=-4 (y+2) + y = -4 solve for y. Then, x= y+2 i don't get it.How did you get that?What

asked by Svetlana on October 17, 2006
29. Math

Use the substitution method to solve the following system of linear equations: x + y = 6 x = –y + 2 A. There are an infinite number of solutions. B. The solution is (2, 4). C. The solution is (4, 2). D. There is no solution.

30. Math need by 9pm cst

Solve by elimination method. Please show step by step process. 7r-4s=-7 4r+7s=61

asked by SAP on September 30, 2010
31. algebra 1

Got a test tomorrow... Say you have a system of equations (linear), that you can solve using substitution, graphing, or elimination. Without solving the equations, can you tell if there is one solution, many solutions, or no solution?

asked by Lily on February 27, 2008
32. math

Explain, in complete sentences, how you would use the graphing method to solve the following system of equations. Provide the solution to the system and explain what the solution represents on the graph. x + 4y = –16 3x + 2y = 12

asked by ashley on November 5, 2010
33. math

solve the following system of equations algebraically or graphically for x and y: y=xsquare-6x+6 y-x=-4 For an algebraicc solution, show your work here. y=x^2-6x+6 y-x= -4 Let's substitute x-4 for y in the first equation. x-4 = x^2-6x+6 x^2 -7x + 10 = 0

asked by Tashanna on August 12, 2007
34. Algebra II

How do you solve the linear equations x+y=5 3x-y=3 by use of the Substitution Method? (Please do not confuse with the Elimination Method)

asked by Ashley on February 24, 2009
35. algebra

What is the solution of the system? Solve the system of equations using the substitution method. x-y=-1 5x+4y=-23

asked by danielle on October 20, 2008
36. math

Solve this system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions 3a+5b=-19 5a-27b=145

asked by john on May 3, 2012
37. Math (Algebra)

I sent my professor asked the pros and cons of each method, I answered with this; When graphing; pros are that graphing gives you a picture of what the solution is. Cons would be is that graphing is not always accurate and it is difficult to see the

asked by Lynn on June 23, 2010
38. College Algebra

Solve for elimination method,substitution method and cramer's rule for 8x - 4y + 2z =16

asked by MJ on September 1, 2016
39. algebra 1

Solve this system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions. 5x=y=15 3x+2y=9

asked by Anonymous on June 25, 2012
40. math

Solve the following system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions x-y=4 3x-5=2

asked by ,algebra on May 2, 2012
41. MATH

Solve this system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions 2x-y=0 3x+y=5

asked by eric on May 3, 2012
42. math algebra

Solve the following system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions. -a+b=-4 2a-3b=-2

asked by jorge on May 3, 2012
43. math

Solve the following system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions. x-3y=5 2x-6y=10

asked by ,algebra on May 2, 2012
44. Math

How do I solve these problems, I really need help. Solve by substitution method 6x+5y=17 x=53-8y Solve by elimination method 2x+3y=5 4x+6y=10

asked by Amy on October 17, 2008
45. MATH

Solving by graphing DQ 1 Solving by substitution Solving by elimination Which method do you think would be best to solve this system? y=10x-8 y=1/2x+5

asked by Anonymous on October 19, 2010
46. Algebra

Create a system of equations that includes one linear equation and one quadratic equation. Part 1. Show all work to solving your system of equations algebraically. Part 2. Graph your system of equations, and show the solution graphically to verify your

asked by Sally on June 9, 2016
47. Math

If -1,2 is the solution to the following linear system, what are the values of the coefficents a and b . Show your work to support your answer 2ax-3by= - 14 5ax - 2by = -2 HOW WOULD I SOLVE

asked by Math ACTUALLY HELP ME!! on February 25, 2019
48. Math Algebra

asked by upbeat on July 20, 2010
49. Math Elimination method

Use the elimination method to solve x+8y= 47 -x + 4y= 13 The solution is (___,___) Thank you

asked by upbeat on July 20, 2010
50. Algerbra

Q1. Solve the system of equationd by addition method. -2x+y=6 -3x-4y=20 Select the correct choice below and, if necessary, fill in the answer box to comlete your choice a)The solution is__(simplify your answer. type an ordere pair) b) Infinitely many

asked by Zedrick Dandridge on November 6, 2011
51. algebra

Task 2: Non-Linear System of Equations Create a system of equations that includes one linear equation and one quadratic equation. Part 1: Show all work to solving your system of equations algebraically. Part 2: Graph your system of equations, and show the

asked by lauren on June 7, 2018
52. PRE - CALCULUS

Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4x-y+3z = 12 x+4y+6z =-32 5x+3y+9z = 20 ...... I NEED HELP WITH THE OTHER TWO PLEASE :) 4 -1 3 | 12  1 4 6 | -32  5 3 9 | 20 1

asked by Ciara on April 17, 2015
53. Math

solve using the substitution method. If the system has no solution or infinite number of solution state this 4x+4y=-36 4x+4y=12

asked by Tammy on February 16, 2011
54. math

solve by the substitution method 3x + 6y = 27 -2x + y = 12 what is the solution of the system..(type an ordered pair, or N if there is no solution)

asked by mikey123 on November 7, 2008
55. math

solve by the substitution method 3x + 6y = 27 -2x + y = 12 what is the solution of the system..(type an ordered pair, or N if there is no solution) has to be like (3,5)please help me

asked by mikey123 on November 8, 2008
56. Algebra

Please help me ASAP! 1. What is the solution to 45 - (-60)? Show your work. 2. Order the following integers from least to greatest: |-4|, 5, -10, 7, 0 3. Alan buys 3 dozen lightbulbs. After changing the lightbulbs in his house, he has 15 lightbulbs left.

asked by Anna P. on March 4, 2019
57. help with solving

x^2+(x-2)^2 = (2x-6)^2 solve for x. thanks so much. Please keep in mind that tutors here won't simply do your work for you. I'm sure you'll get a better response if you show your work as far as you can get, so tutors will know where you get stuck. =) it

asked by q on August 3, 2007
58. Math

1. Explain the advantages and disadvantages of both the substitution method and the elimination method for solving a system. Help please. The only reasons I can think of is because in substitution it might be more difficult cause there's a possibility of

asked by Amanda on February 18, 2008
59. algebra URGENT!

Solve the system using elimination. 2x – 2y = –8 x + 2y = –1 And this one: Solve the system using elimination. 3x – y = 28 3x + y = 14 Pleease help me :(

asked by Laura on December 21, 2012
60. mat116

Can you please look over these and let me know if they are right? 1/4(5x-1/2)-5/3

asked by Anonymous on October 1, 2009
61. mat116

Can you please look over these and let me know if they are right? 1/4(5x-1/2)-5/3

asked by Anonymous on October 1, 2009
62. algebra 1

use the substitution method to solve the linear system. 9x+6y=3 3x-7y=-26 please show me an example of how to do it.

asked by aneme on February 12, 2008
63. science

1 What is a set of real or complex numbers or elements arranged in rows or columns to form a rectangular array. set matrix determinant real numbers 2 If A.x= λx ,where A= ∣∣∣∣211232−212∣∣∣∣ ,determine the eigen values of the matrix A,

asked by sunday on March 15, 2014
64. math

Solve by the substitution method. What is the solution of the system? 3x+9y=48 -6x+y=56

asked by Bre on January 20, 2012
65. Algebra

Solve by the substitution method 8 m + n=1 M-4N=29 What is the solution of the system

asked by Keaton on March 26, 2009
66. math

Solve by substitution method 8x+9=-2 -9x+y=69 what is the solution of the system?

asked by micheal on June 16, 2009
67. math

Solve by substitution method 7m+n=27 m-8n=69 What is the solution of the system?

asked by micheal on June 16, 2009
68. Math 116 algebra please check

Solve by the substitution method 3x + 7y =15 x=16-6y What is the solution of the system (-2,3)

asked by jay jay on July 16, 2008
69. math

solve by the substitution method. 5x + 7y= -19 x=4-4y what is the solution of the system?

asked by joe on July 21, 2009
70. math

1. Select any two integers between -12 and +12 which will become solutions to a system of two equations. 2. Write two equations that have your two integers as solutions. Show how you built the equations using your integers. Your solution and equations

asked by John on March 31, 2011
71. Math

Could you please show me how to do this? It says to use the elimination method. 2x-y+2z=-7 -x+2y-4z=5 x+4y-6z=-1

asked by Geno on September 24, 2007
72. Algebra 2/Math

Can you check these thanks. Solve the system by substitution or elimination. 2x+y=1 3x-y=14 Answer: (3,5) x-3y= -12 2x + 11y= -7 Answer: (39,17) 4x+2y=8 12x+6y=24 Answer: no solution 4x-2y=5 2x-y= -1 Answer: no solution 4a+3b =6 8a-b= -9 Answer: no

asked by Karen on November 20, 2010
73. math

Solve using the algebraic method. x+5=15 SHOW WORK thanx subtract five from each side. Do you have an allergy to showing work?

asked by lida on March 29, 2007
74. algebra 1

Use elimination to solve the the system of equations given by 10x-4y=-20 and 10x-5y=35. I can't figure this one out. Whenever I check my work, it is incorrect.

asked by Lily on July 24, 2010
75. algebra

Solve using the substitution method and state if the system has a solution. 4p-2q=16 5p+7q=1

asked by Dani on April 23, 2010
76. Linear Algebra

Hello ! i try to solve Linear algebra 2 questions(but need them be written properly as mathmatical proofs) Having A matrice nXn: 1)proove that if A^2=0 the columns of matrice A are vectors in solution space of the system Ax=0 (x and 0 are vectors of

asked by Anatoly Z on January 11, 2009
77. Math

6x-4y=54 -9x+2y=-69 Which system would work best to solve? Please show work and solve. (all steps) Thank You I honestly don't know how to do this.

asked by Deborah on December 2, 2012
78. math

solve for x without using a calculator 5^(x+1) = 25 i know that x would equal 1 because 5^2 is 25, but i don't know how to show how to solve it All you need to do is what you just did: Explain that if x = 1, the equation is satisfied. If you are looking

asked by Anonymous on July 14, 2007
79. algebra 2

Nonlinear systems Solve the system by elimination. y=x^2+2 -4x-y=10 Solve the system using substitution. y=-3x^2+x-2 y=-5x+3

asked by jenny on May 9, 2012
80. algebra 2

Nonlinear homework... Solve the system by elimination. 1)y=x^2+2 -4x-y=10 2) Solve the system using substitution. Y=-3x^2+x-2 Y=-5x+3

asked by jenny on May 7, 2012
81. Algebra II

Solve the given system by using a substitution method 9x-2y=3 3x-6=y If you could show the steps because I have 10 problems for homework and I just need an example Thanks

asked by JessieLynn on February 4, 2011
82. Algebra

Solve the system of equations and check your solution. x^2+y^2=25 x+2y=10 I tried but I got only the 2 x values 8 plus or minus the square root of 164 all over 2. I know the answer is wrong but I can't find my mistake. Can you show me step-by-step how to

asked by Anonymous on April 6, 2016
83. algebra 1

What is the solution to -2x+5y=-1 and 3x+2y=11 by using elimination method

asked by Rosaura on January 17, 2012
84. College Algebra

I knew how to do this but forgot. Solve by the substitution method. 4m+n=4 m-4n=35 What is the solution of the system?

85. algebra

I have tried these problem cannot get the answer so could some one help me. Solve by the subsitution method. 2x-7y=-11 2x +17=y What is the solution of the system.

asked by Keaton on March 26, 2009
86. math

solve by the elimination method x + y = -2 4x - 6y = -3

asked by nancy on May 9, 2013
87. algebra

7r-3s=18 3r+7s=16 Solve by the elimination method, please.

asked by Marty on April 11, 2010
88. math

Using elimination method solve 2/x-3/y=1, 8/x+9/y=1/2

asked by collins on June 1, 2018
89. HELP

Solve using the elimination method? 4x-9y=6.5 AND 7Y-2X=4.5

asked by tera on February 9, 2009
90. math

Solve using the elimination method. 4x+3y=-45.5 -5x+8y=-43

asked by Chrissy on January 11, 2012
91. Maths

Solve this using elimination method: 4x-3y=-4

asked by Jeconiah on August 25, 2012
92. pre calc

solve following using "elimination method" 3x^2 + 4y = 17 2x^2 + 5y = 12

asked by Keith on May 19, 2010
93. algebra

Solve by the elimination method. 2x-7y=-36 7x+2y=33

asked by Christina on August 12, 2012
94. algebra

Solve by using the elimination method. 2x=2+4y -3/2x+y=-31/2

asked by Christina on August 13, 2012
95. algebra

Solve by using the elimination method. 7x-8y=-20 8x+7y=74

asked by Christina on August 13, 2012
96. algebra

Solve by using the elimination method. 9x-y=72 x+4y=45

asked by Christina on August 13, 2012
97. math/116

solve x+y=7 x-y=5 using elimination method

asked by lynn on June 4, 2012
98. algebra

solve by elimination method 3x+4y=4 6x+8y=8

asked by Carey on August 27, 2011
99. Math

Solve using the elimination method. 2x/5 + y/2 = 3 x/2-y/6=2 Please and Thank you