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

91,718 questions, page 5
1. algebra

solve system graphically. be sure to check your solution. if a system has infinite number of solutions, use set builder notation to write the solution det. if a system as no solution, state this. a=1+b b=5-2a

asked by Anonymous on June 29, 2011
2. Algebra

I just wanted to verify the answer I came up with. Solve by the substitution method. 5x+2y=-31 x=-3-2y What is the solution of the system? y=2 x=-7 The ordered pair would be (-7,2)

asked by Amanda on August 2, 2008
3. math

Solve using the substitution method. If the system has no solution or an infinite number of solutions, state this. -2x + 0y = -14 x + 11y = 18

asked by Jim on June 16, 2011
4. Algebra 2

Solve this system by substitution: 2x-3y=12 x-4y=6 Slve this system by elimination: 8x+5y=22 6x+ 2y=13

asked by Christian on October 19, 2007
5. Pre-Calculus

Solve for x,y,z, & w using the Gauss-Jordan Elimination Method 5x+3y+z+5w=-2 3x+2y+2z+4w=2 2x+4y+3z-3w=-11 4x-3y-2z+2w=-3 Can anyone help me please? Thanks.... What is the Gauss-Jordan Elimination Method?

asked by Linda on December 5, 2006
6. math (am i correct)

solve by elimination method. 2x+3y=4 4x+6y=8 is the answer -3/2y+2 they want it as an ordered pair

asked by scooby9132002 on July 1, 2009
7. Algebra 2

Solve each question algebraically: either using the elimination or the substitution method. 3x-1/2y=5 1/3x+1/4y=3

asked by Sergio Alvarado on August 6, 2011
8. math check answer

Solve by elimination method 3x - 6y =4 3x - 6y =5 is the answer x=9 and I think it is inconsistant and not consistant

asked by Christy on July 6, 2010
9. Math

Solve these simultaneous linear equations using elimination method : 3a = 2b + 1 and 3b = 5a - 3

asked by Olayemi on September 19, 2015
10. Algebra

How would you solve this matrices using the Gauss-jordan elimination method? {[-5, 8, 10]} {[5, 8, 4]} {[10, 8, 5]} {[5, 4, 8]}

asked by Jesse on May 18, 2009
11. math (am i correct)

solve by elimination method. 2x+3y=4 4x+6y=8 is the answer -3/2y+2 they want it as an ordered pair

asked by scooby9132002 on July 1, 2009
12. algebra

Solve by the elimination method: 0.3x-0.2y=4 0.4x+0.5y= -29/19 (fraction)?? Please Help I do not understand Algebra!!

asked by Shannon on September 18, 2010
13. math

Solve by elimination method. 2r-5s=-33 5r+2s=48 I keep getting different answers... I can never get these right.... so first I multiply the first equation by 2 and the second by 5?

asked by Amanda on November 11, 2009
14. Algebra

Solve by elimination method. 5x+y=1 10x+12y=2 Please Help I can't seem to figure this one out.

asked by Crisanta on May 15, 2011
15. 5a-2b=14 , 2a+2b=14

Use the method of elimination to solve the following pairs of simultaneous equation 8y+4z=7 6y-8z=41

asked by Gabriel on March 6, 2016
16. Algebra

Solve the following systems of equations using the addition (elimination) method. -2x+3y=5 2x-y=1

asked by Steveo on March 2, 2014
17. Algebra

Solve the following systems of equations using the addition (elimination) method. 5x=20+y 16=3y+4x

asked by Steveo on March 2, 2014
18. Algebra

Solve the following systems of equations using the addition (elimination) method. 5x+y=2 3x+y=1

asked by Steveo on March 2, 2014
19. Algebra

Solve by elimination method. 5x+y=1 10x+12y=2 Please Help I can't seem to figure this one out.

asked by Crisanta on May 15, 2011
20. algebra

solve by elimination method to find an ordered pair. 7x-y=27 x+9y=77

asked by leigh on March 13, 2016

Solve each system of equations, give the solution and state whether there are no solutions or many solutions. 1 )3x + 8y = 1 7x + 4y = 17 Answer: (3,1) 2) -3x + 5y = -7 9x + 2y = 38 Answer: (4,1) 3) 7r + 3s = 13 14r - 15s = -16 Answer: (1,2) 4) 2x - 7y =

asked by Lily on February 25, 2009
22. math/algebra

Can I get help in solving these problems using the linear system of elimination. 4x - 5y =22 x + 2y = -1 2x - 3y = 16 3x + 4y = 7 Word Problem: During the summer, you want to earn at least \$150 per week. You earn \$10 per hour working for a farmer and you

asked by JAY10 on March 12, 2009
23. Algebra 1

Solve each system graphically. Be sure to check your solution. If a system has an infinite number of solutions, use set-builder notation to write the solution set.If a system has no solution, state this. I tried this and found no solution, is this right? x

asked by slomo on January 8, 2015
24. Mason

solve each of the following equations by the square root method and show your work 4x²-20=0

asked by Derek on September 7, 2008
25. math

solve each of the following equations by the square root method and show your work 4x²-20=0

asked by Derek on September 7, 2008
26. algebra

solve by the substitution method: 8m+n=47 m-5n=52 thank you having trouble completing please show all work so I can learn better

asked by Barbara on July 26, 2011
27. mathes for management

Use gauss Jordan elimination method to find solution set of 4x+5y+3z=23 3x+2y+z=10 2x+5y-z=9

asked by legesse on December 13, 2016
28. Algebra

Solve the system of equations using substitution. x + 4y = -5 3x - 8y = 45 When I tried to solve it, I got x=-17 and y=-3. When I plugged these into the first equation, it didn't work out at all. Could someone please show me the steps so I can see where I

asked by Cassie on February 27, 2009
29. Math

Please I need to solve this problem Use the elimination method 0.3x -0.2y=4 0.5x + 0.3y=1 Plesae help I am competely lost!!!

asked by upbeat on July 20, 2010
30. math

solve using the elimination method 0.05x+0.25y=11 0.15x+0.05y=12

asked by Kristen on March 13, 2010
31. math

0.05x+0.25y=11 0.15x+0.05y=12 solve using the elimination method

asked by Kristen on March 13, 2010
32. precalculus

can you check my work? Solve the system of equations at the right by the method of substitution. Verify your results by using a graphing utility. x^2+y^2-4x+6y-5=0, x+y+5=0 x=-y-5 (-y-5)^2+y^2-4(-y-5)^2+6y-5=0 y=√5-5, y=-5-√5 x+√5-5+5=0 x=-√5

asked by Anonymous on December 14, 2016
33. algebra 1

Solve each linear system by substitution method. x+2y=7 2x+4y=8 I'm getting stuck. Could some one explain the work out process and what the outcome means?

asked by Chica on January 24, 2010
34. Math

solve the system of linear equations using the addition method. Can you please show me the steps on how you reached the answer. Thank You 2x+20y= -144 12x+5y= 56

asked by Heather on May 11, 2010
35. chemistry

sorry the first one didn't post properly Lab: Electrolytic Cells The purpose of this experiment is to test the method of stoichiometry in cells. Materials: balance steel can tin electrode power source wire lead (x2) tin (II) chloride solution (3.25 M)

asked by anna on April 15, 2008
36. need help in math,

Translate to a system of equations and solve using the addition method. The sum of two numbers is88. The difference is 22.Find the numbers? My answer: I started but i think that i am wrong. x + y = 88 y = -x +88 y = -1x + 88 now once i substituted x -1x +

asked by jasmine20 on January 13, 2007
37. math

Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method? Which method do you like best? Why? What circumstances would cause you to use a different method?

asked by yolanda on July 1, 2008
38. pre calculus

Describe the advantages and disadvantages of The method of substitution”, “The method of graphing”, and “The method of elimination” of solving systems of equations

asked by Anonymous on November 29, 2016
39. algebra

o Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method? Which method do you like best? Why? o What circumstances would cause you to use a different method?

asked by lacey on January 26, 2010
40. Algebra

Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method? Which method do you like best? Why? What circumstances would cause you to use a different method?

asked by John on March 4, 2008
41. MATH

SYSTEMS OF EQUATIONS CAN BE SOLVED BY GRAPHING OR BY USING SUBSTITUTION OR ELIMINATION. WHAT ARE THE PROS AND CONS OF EACH METHOD? WHICH METHOD DO YOU LIKE BEST? WHY? WHAT CIRCUMSTANCES WOULD CAUSE YOU TO USE A DIFFERENT METHOD?

asked by Davisha on February 4, 2009
42. math

SYSTEMS OF EQUATIONS CAN BE SOLVED BY GRAPHING OR BY USING SUBSTITUTION OR ELIMINATION. WHA ARE THE PROS AND CONS OF EACH METHOD? WHICH METHOD FO YOU LIKE BEST? WHY? WHAT CIRCUMSTANCES WOULD CAUSE YOU TO USE A DIFFERENT METHOD?

asked by DAVISHA on February 4, 2009
43. Pre-Calculus

I have to use the substitution method to solve the system of equations. 4x-y=9 and 2x+3y=12 I worked this problem myself and could not find a possible solution. So I put that it is inconsistent. Is that correct? If not could you please help me?

asked by Caroline on January 22, 2013
44. Pre-Calculus

Solve the system of equations using matrices. Use Gaussian elimination with back-substitution. x + y + z = -5 x - y + 3z = -1 4x + y + z = -2 I really need help.. 1 1 1 -5 1 -1 3 -1 4 1 1 1 -2 I've done so many different methods to solve this and I get

asked by Alexa on June 7, 2016
45. Algebra

8. Solve the system using elimination. x + 2y = 1 4x + y = 11 So I added both equations and got 5x + 3y = 12 but am unsure of where to go next with it. I am having the same problem on another question just a bit different than this in which it just asks to

asked by Nikki on July 11, 2017
46. math

use gauss jordan elimination method tofind solution set of4x+5y+3z=23.3x+2y+z=10.2x+5y-z=9

asked by Anonymous on June 6, 2018
47. math

use gauss jordan elimination method tofind solution set of4x+5y+3z=23.3x+2y+z=10.2x+5y-z=9

asked by Anonymous on June 6, 2018
48. Algebra

Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method? Which method do you like best? Why? What circumstances would cause you to use a different method? I can answer all them

asked by dawn on September 14, 2008
49. Maths

Using a cramers and guassian elimination method solve this; a+2b+3c=600 2a+3b+c= 900 3a+b+2c=800

asked by Omotimehin pelumi on March 6, 2012
50. Algebra

please help me!! Solve by elimination method: 3r - 5s = 6 5r + 3s = 44 I thought that I could do vertical addition,when I do, I get 8r - 2s = 50...........but none of the variables are eliminated.

asked by ggift on November 23, 2009
51. math

4x-8y=5 4x-8=6 solve by the elimination method type an ordered pait, integer or fraction

asked by Anonymous on April 17, 2009
52. Algebra 2

Solve the system y=-4x+4 y=-x-5 show work

asked by Precious on January 31, 2012
53. Mathematics

True / False: The Plurality-with-Elimination Method sometimes violates (i.e. does not always satisfy) the majority criterion. 1. False because the plurality-with-elimination method always requires the winner to have the majority of votes. 2. True because

asked by Gaby on March 29, 2017
54. Algebra.

What is the solution to the system? use elimination . -18.6x+ 17.2y=90.2 14.2x+ 3.4y= -35.8 a.(3,2) b.(-3,2) c.(2/3,4/9) d.(2,3) IS IT D??

asked by Sierra. on January 5, 2016
55. Algebra 1

What is the solution to the system? use elimination . -18.6x+ 17.2y=90.2 14.2x+ 3.4y= -35.8 a.(3,2) b.(-3,2) c.(2/3,4/9) d.(2,3) IS IT D??

asked by sierra. on January 5, 2016

Produce an example of a system of equations to your fellow students and allow them to respond on which method (graphing, substitution, elimination, matrices) they would choose for solving your systems of equations. Be sure to reply to students' responses

asked by Redbone on June 10, 2009
57. Algebra II

Solve the system by substitution. {-x - y - z = -8 { -4x + 4y + 5z = 7 { 2x + 2z = 4 Solve the system by elimination. {-2x + 2y + 3z = 0 {-2x - y + z = -3 {2x+ 3y+ 3z = 5

asked by HELPME on September 27, 2018
58. algebra 2

Solve the system by elimination. Y=x^2+2, -4x-y=10

asked by jenny on May 7, 2012
59. algebra

solve each system using elimination x+4y=12 and 2x-3y=6

asked by mark on January 12, 2010
60. Algebra

Solve the system by elimination 2x+3y=4 5x+6y=7

asked by Sanan on September 19, 2016
61. Algebra 1 (Reiny or Kuai)

Solve each system by elimination. a. 2x + 3y = 33 y= 1/4x

asked by Anonymous on December 30, 2013
62. math

how do i solve system by elimination 6x-y=18 2x+y=2

asked by rachel on September 5, 2012
63. algebra

solve each system by elimination 9x-6y=-30 x-3y=6

asked by claudia on December 17, 2012
64. math

solve the system using elimination 4x-7y=3 x-7y=15

asked by venus on January 7, 2019
65. Algebra

2x+y=-5 3x-y=-10 solve system using elimination

asked by Candy on January 30, 2013
66. Algebra2

Solve the system by elimination. -2x+2y+3z=0 -2x-y+z=-3 2x+3y+3z=5

asked by Steve on September 18, 2016
67. math

solve the system by elimination. 6x-6y-4z=-10 -5z+4y-z=-12 2x+3y-2z=9

asked by anonymous on October 11, 2008
68. Algebra 1

Solve each system using elimination. 1.) 5x - y=0 3x + y=24 2.) 3x + 3y =27 x - 3y =-11 3.) 6x +4y =42 -3x + 3y =-6

asked by Lindsey on February 25, 2015
69. Math

1. Solve the system using elimination. 3x+3y=27 x-3y=-11 a. (8,1) b. (3,6) c. (6,3) d. (4,5)*** 2. Solve the system using elimination. 4x-7y=3 x-7y=-15 a. (-12/5,10/7) b. (-1,2) c. (6,3)*** d. (1,1/7) 3. Solve the system using elimination. 2x+3y=9 x+5y=8

asked by Kaai97 on January 11, 2016
70. Algebra

Solve the system by elimination -2x + 2y + 3z = 0 -2x - y + z = -3 2x + 3y + 3z = 5

asked by TaylorBear on October 14, 2016
71. Math

Solve the system using elimination. y = -x + 3 y = x^2 + 1

asked by Anonymous on March 22, 2014
72. math

0.3x-0.2y=4 0.5x+0.3y=-7/17 Can anyone Please help me solve using the elimination system.....

asked by Holly on March 13, 2010
73. Algebra

Solve the system by elimination -2x + 2y + 3z = 0 -2x - y + z = -3 2x + 3y + 3z = 5

asked by Taylor on October 12, 2016
74. math

solve each system by elimination x+y=10 x-y=2

asked by alex on January 8, 2013
75. Math

Solve the system using elimination. 5x-5y=10 and x-5y= -14

asked by Belle on January 10, 2019
76. Math (Help) thx!

Solve the system using elimination. −7x + 15y = 95 7x − 15y = 115 A. (7,935) B. (935,7) C. (15,1313) D. no solution

asked by Gopi on January 5, 2016
77. precalc

I'm terrible at pre calc, could someone tell me if the solution set for log subscript 2 x + log sub 2 (x-1)=1 is the solution -1? Using either the elimination or substitution method is the solution set for 4x + y =11 and 2x -y = 7 is the answer (3, -1)?

asked by eragon on January 13, 2007
78. College Math II

Solve by any method. a^4 – 5a^2 + 4 = 0 I am having problems figuring out what method to use to solve this problem. I need to show my steps and I am not sure how to do this. Can someone help? Thanks.

asked by Lori on November 21, 2009
79. Math

1) Solve: 8x ¨C (6x + 4) = 8 x = -2 2) -7x > 1/15 the solution set is: {x | x > -105} 3) Solve 5> -4x + 4 or 10 ¡Ü -4x +3 the solution to the inequality is: [-¡Þ, -7/4] U [-1/4,¡Þ] 4) Use < or > to make the statement true: -9 < 3 5) Graph the

asked by Algebra HELP!!! on November 5, 2008
80. MATH

Useing substitution/elimination method what is the solution set to x^2+y^2=25 4x-3y=0 a)(3,4) and (-3,-4) b)(3,-4) and (-3,4) c)(-4,3) and (4,-3) d)(4,3) and (-4,-3) PLEASE HELP! There are two ways to do this. (1) Try each of the multiple choices in the

asked by Anonymous on January 16, 2007
81. Algebra 2

Determine the solution to the system y≤x+6 2x+y≤-6 show work

asked by Precious on January 31, 2012
82. Algebra 2

Determine the solution to the system y≤2x-2 y≥-x-3 Show work

asked by Precious on January 31, 2012
83. Algebra 1 a

Need help to solve can anyone help me please 6x-9y = 25.5 7y-2x =-10.0 solve the elimination method

asked by Manu on June 26, 2011
84. Intermediate Algebra

Solve the following system of equations. x+4y=5 x=6-4y What is the solution of the system? a) The solution of the system is ___? (TYPE AN ORDERED PAIR) b) There is no solution

asked by Student5 on February 16, 2014
85. Math

y=3x-1 y=-2x+9 Please help me solve this system of equation and show your work thanks

asked by Haylie on February 25, 2012
86. Math

y=5x-3 y=2x+6 Please help me solve each system of equation and show your work thanks

asked by Haylie on February 27, 2012
87. Math

x+y=8 x+3y=14 Please help me solve each system of equation and show your work.

asked by Sadie on February 27, 2012
88. Math

2x+y=12 3x-y=13 Please help me solve the system of equation and show your work.

asked by Rachel on February 27, 2012
89. Algebra 2

Solve the linear system 4x+4y=-2 y=-x show work

asked by Precious on January 31, 2012
90. Math

x+y=20 x=y-4 Please help me solve each system of equations and show your work thanks

asked by Haylie on February 23, 2012
91. Math

4x-3y=33 x=-4y-25 Please help me solve this system of equation and show your work thanks.

asked by Katy on February 27, 2012
92. algebra

solve the following system of equations, please show work 3x-2y+z=12 x+3y+z=-4 2x+2y-4z=6

asked by heidi on October 2, 2017
93. Math

4x-3y=33 x=-4y-25 Please help me solve this system of equation and show your work thanks.

asked by Katy on February 27, 2012
94. Algebra 2

Solve the system algebraically 2x^2-5y^2=1 x^2+5y^2=68 Please show work!!!

asked by Alicia on January 11, 2015
95. Algebra 2

Solve Quadratic System x^2+y^2=2 x^2-6y=10 Please show work!!!

asked by Elisa on November 23, 2014
96. Math

3x+3y=15 3x-6y=-12 Please help me solve each system of equation and show your work thanks.

asked by Haylie on February 25, 2012
97. Math

4x+y=-17 -3x+y=4 Please help me solve each system of equation and show your work.

asked by Hannah on February 25, 2012
98. Math

y=5x-2 6x+3y=15 Please help me solve this system of equation and show your work thanks

asked by Haylie on February 24, 2012
99. Math

x=-2y+1 x+3y=-2 Please help me solve each system of equations and show your work thanks.

asked by Lacy on February 25, 2012
100. Math

1.5x+4y=8 x+y=7 Please help me solve this system of equation and show your work.

asked by Kelly on February 25, 2012