# 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 417
1. ## Math

The square root of 27b^11 Can someone explain to me how to solve this?

2. ## math

solve the inequality 8/x+3/4/

asked by brandon on August 27, 2012
3. ## Math

Which inequalities share some solutions with x > 3? - a x > 3 b x < 0 c x < 3 _ d x > 5 _ e x < 3 How do I solve this problem?

asked by Jay on April 10, 2015
4. ## graphing

Can someone shwo me how to solve these inequalties for me? 3. -6 < x and 3 < 6 (Remember this is an "and" statement) 4. -3x < -6 or x + 5 < -2 5. x - 2 > 2x + 1 or -10 > -2x - 2

asked by mike on May 17, 2007
5. ## math

How do you solve an equation with trinomials and polynomials equal to zero?

asked by Primrose on March 12, 2014
6. ## Pre-calc

Solve these equations for x by factoring: 1) x(x-4)=12 2) 2x^3+50x=20x^2 3) 2x^2+x-6=0 Thank you for all your help!!!!

asked by Anonymous on January 25, 2010
7. ## math3333

y+2/y =1/y-5 *Please solve the rational equation I am not certain if the right term is 1/(y-5) or the right side is 1/y -5

asked by margie on March 4, 2007
8. ## John

asked by Daniel on November 11, 2017
9. ## math

please help, I have a test tomorrow and i don't get this. solve by substitution 1. y = x - 3 x + y = 5 2. 5x + 2y = 0 x - 3y =0

asked by Jim on October 26, 2009
10. ## Algebra 2

Solve each equation for the variable. Check your solutions, if possible. x/2+1=6

asked by Jim on October 25, 2015
11. ## Algebra II

I should know where to start, but I have a brain freeze. Will someone get me started? a^2 + b^2 = f^2, solve for a thanks :)

asked by Nancy on February 27, 2011
12. ## math

Solve the following and express the answer in scientific notation: (5.3 x 10^4) + (2.2 x 10^3) A. 5.5 x 10^4 B. 7.5 x 10^3 C. 7.5 x 10^7 D. 11.7 x 10^7 I say A

asked by shana on November 7, 2012
13. ## Math

ln(5x + 7) = 8 Not looking for an answer, I’m just stuck. Could someone give me the steps to solve this?

asked by Joe on December 31, 2018
14. ## math

Solve the following and express the answer in scientific notation: (5.4 × 10^4) × ( 4.5 × 10^8)

asked by shana on November 6, 2012
15. ## differential equation!!

How can I solve the differential equation? C = 15ð(2Dh+(3/4)D²) + ë (94.25 Dh+35.34 D^2)/(pi D^2h/4) first dC/dD? second d^2C/dD^2? first dC/dh? second d^2C/dh^2?

asked by Alicia on November 23, 2010

how do u solve dis problem: 8cm/s= ___ ft/h

asked by Anonymous on February 18, 2010
17. ## pre-algebra

asked by Barbara Passmore on November 22, 2013
18. ## Math

pls.help me understand how to solve pythagorean theorem

asked by diane on December 16, 2014
19. ## college algebra

writing equation in quadratic form then solve 36/b-17=-24/b+1

asked by Joe on March 8, 2009
20. ## Algebra

Isn't there a way to solve this (x+7)(x-1)= (x+1)(x+1) like, making both sides have the same denominator ?

asked by Amy~ on September 7, 2010
21. ## help in math

solve and check each of the following quadratic equation (1) x^2=6x (2) x^2=3x (3)x^2=17x (4) x^2=5x+6 (5) x^2+9x=10

asked by tanya on February 15, 2012
22. ## Math

Solve the equation |x^2 - 2x - 6| = 4 algebraiclly, using the quadratic formula

asked by Anonymous on March 29, 2019
23. ## Trig

Solve for x in the interval [0,2pi) sin^2x+2cosx=2

asked by Tina on April 12, 2010
24. ## math

how to explain this and solve this equation Y=5x2-10x+9

asked by josy on March 8, 2011
25. ## Math

Name two methods that are used to solve Quadratic Equations when they are irreducible.

asked by Abbie on February 15, 2012
26. ## Cmax

How do I solve for Cmax= 8.5/ e(-0.257 * (1-0.5))? Also, how would I input 'e' in my calculator?

asked by John on February 9, 2017
27. ## math

I need help with 4 mat problems. I do not know how to set up to solve. x/8=-6 -4/9+(-5/7) x-4/5=6/7 7/x=?/xsquared

asked by will on April 11, 2008
28. ## algebra 2

asked by help on July 9, 2011
29. ## College Algebra

The problem is to find the domain of 2x+7 / x^3-5x^2-9x+18. I know that x^3-5x^2-9x+18 cannot = 0. What I can't remember is how to solve x^3-5x^2-9x+18 ≠ 0. Thanks!

asked by Mary on September 16, 2010
30. ## math

Write a number story for the expression, and solve it. 3 ÷ 1/4 = Please help me.

asked by Anonymous on January 31, 2013
31. ## math

1. Solve: 6C3 120***? 720 20 240 is this right?

asked by TTR+S<3 on April 20, 2014
32. ## Math

Solve for x. 2x-10. 3 -------- = ---- 5. 4 Plz help and thank you so much! Explain steps as well very much appreciated.

asked by Ginger on January 29, 2016
33. ## Algebra 2

Solve for x. 2x² - 5bx + 4cx - 10bc = 0

asked by Peter on October 18, 2011
34. ## chemistry

What is the bond order of OH- and OH+? I tried to solve it but couldn't so Im about to give up. Help me please.

asked by Tom on May 24, 2008
35. ## maths

solve this equation for m0 vm=u(lnm0-lnms)-gtf

asked by presh on May 6, 2015
36. ## Algebra II

Solve In(5x+7) = 8. Round to the nearest thousandth. Can someone walk me through this?

asked by Nickie on December 13, 2017
37. ## algebra

asked by tiffani on May 2, 2012

39. ## algebra

solve inequalite place in interval notation 4-x/x-6

asked by ddd on December 2, 2011
40. ## Math

Solve each question. Round to the nearest tenth if necessary. 7r – 7 = 2r + 18 A. r = –5 B. r = 5 C. r = 2.2 D. r = 1.2

asked by Anonymous on December 18, 2018
41. ## Calculs

Solve the equation on the interval [ 0, 2 pi] (tan x + ?3)(2cos x + 1) = 0

asked by Kelly on November 19, 2007
42. ## college algebra

Slope intercept Vertical, passing (5,-1) Do you solve like this? M1= m/5-5m M=5

asked by Anonymous on February 2, 2013
43. ## Algebra 1

What is 28% as a decimal and as a fraction? Also, can you tell me how you got the answer so I can solve the problems myself.

asked by Dani. on August 29, 2012
44. ## math

solve by factoring and using the principle of zero product.? 9k^2 = 27k -81

asked by luz on March 29, 2013
45. ## Algebra

Solve the linear inequality 5- 7/6x greater than or equal to 7

asked by Anonymous on November 9, 2012
46. ## Calculas

lim (x⁻¹-1)⁄x-1 as x approaches 1. I know the answer is -1 but I am not sure how to solve the numerator x⁻¹-1.

asked by Jake on January 14, 2017
47. ## math

solve 0=(3^0.5)tan(x+(pi/6))+1 and find all general solutions

asked by shan on April 16, 2008
48. ## college math

Please help me solve this Find the value of k so that the polynomial Q(x)= x^3 - k^2x^2 + k(5x-9)- 12 has a remainder of 1 when divided by x + 2

asked by Jen on October 11, 2010
49. ## College Algebra

Solve 2x(squared)-3x-2=0 using the quadratic formula. Can someone explain this to me please?

asked by Alicia on November 18, 2007
50. ## Math

Explain,in words,how would you solve: 3(n-8)=12+2n {this is a two step equation}

asked by Louis Streeter on November 1, 2010
51. ## Math

How do I make 2/30 into a percent? I don't need answer only need to know how to solve.

asked by Kevin on February 11, 2010
52. ## Algebra 2..

Solve. 1. (-16)^1/4 2. -16^1/4 *Please post some links so I can have extra practice.

asked by Anonymous on December 9, 2012
53. ## algebra

what does it mean to solve and check for extraneous solutions for sqry+9=1

asked by kate on November 20, 2007
54. ## trig

how do i solve tan(165) and sin(285)

55. ## math

Solve 2cosx-sin^x +2 =0 for all real values of x

asked by Alex on April 15, 2010
56. ## Math

The following equation relates u and t. 3t=(1)/(7+u) Solve for u as an explicit function of t.

asked by Sarah on September 9, 2016
57. ## Algebra 1

What are two symbolic techniques used to solve linear equations?

asked by Austin on August 30, 2012

Solve initial value problem explicitly: 1. y'= ye^-x, y(0)=1 2. y'= 5xe^-y, y(1)=1

asked by Leah on February 2, 2011
59. ## trig

solve for exact value for x between 0 and 2 pie 3sin2(x)-cos2=2?

asked by shery on May 3, 2011
60. ## precalc

Solve in radians. 1) sin2X = 1/2 2) tan2 (X + pi/2) = 1 3) 5 - 3sec (X - pi/4) = -1

asked by j on October 27, 2015
61. ## Calc.

Solve the initial value problem explicity: y'= 5xe^(-y), y(1)=1

asked by Tania on February 2, 2011
62. ## Math help

solve the inequality. Explain all steps. n/-3 + 5 greater than 4

asked by Kats on November 18, 2017
63. ## cross product

Explain how to solve the proportion 14/9=x/54 using cross products

asked by Armin on September 16, 2014
64. ## algebra

are the lines through each points parallel or perpendicular. (2,4) (-1,-1) (8,0) (11,5) solve

asked by cherry on June 17, 2014
65. ## math

use the distributive property to help you solve the equation 9(w-2)=45 w=7 is this correct?

asked by jason on June 29, 2009
66. ## calculus

Cos(pi/12) solve using half angle formula

asked by Abbey on February 5, 2012
67. ## Math

What are the odds of drawing a 5 from these cards? 1,2,3,4,5 I do not understand how to solve this. Thanks

asked by Katie on September 18, 2016
68. ## Calculus

how do I solve for t when i am given: 5000 = 45t^2 + 240t + 450

asked by Chris on March 7, 2011
69. ## Algebra 1

Solve each compound inequality. -1-10a

asked by Austin on May 24, 2018
70. ## Linear Algebra

Solve the initial value problem: xdy/dx+4y=7x^3-10x for y(1)=4

asked by Brianna on September 14, 2012
71. ## Math

14.8cos(27.8)(29cos(x))+14.8sin(27.8)(29sin(x))=22 How do you solve for x?

asked by Emma on November 17, 2012
72. ## Math equation

solve using the addition and multiplication principle 5x+2-4 less than or equal to 13

asked by Lavern on December 4, 2011
73. ## Math help

How would you solve these systems? I'm in need help!! Thanks so much! 1. -7x-6y=-21 -x-6y=-3 2. -7x+2y=13 -14x+4y=26 3. 2x+10y=30 -10x-6y=-18

asked by Anonymous on January 25, 2014
74. ## Algebra 1

Adding and subtracting polynomials. (6-t-t^4) + (9t+t^4) How do you solve this problem?

asked by Alex on September 27, 2014
75. ## Math

How do I solve this absolute value inequality? Should I add two to both sides first? | -3n | - 2 = 4

asked by Carly on November 8, 2012
76. ## Math

Using logarithm table,solve,0.016*0.084/0.48

asked by Haleemath on May 7, 2013
77. ## Math

Solve : 2tan3x+cos2x+1=tan3x+2cos2x

asked by Bishal Poudel on April 28, 2019
78. ## HELP ! Algebra

Solve the quadratic equation by completing the square. (-x^2 + 6x + 10 = 0)

asked by Robert on November 16, 2012
79. ## math equation

solve using the addition and multiplication principle 5x+2-4x is less than or equal to 13

asked by Lavern on December 3, 2011
80. ## trig

Solve the triangle ABC if angle A = 76 degrees and a = 12, b = 4

asked by John on April 26, 2010
81. ## math

Solve the following inequality and answer in interval notation: 5(3a+4)

asked by Lisa on June 11, 2013
82. ## Intermediate algebra, concepts and graphs

Solve the following inequality and answer in interval notation: 5(3a+4)

asked by Lisa on June 11, 2013
83. ## Algebra

help me solve this equation by substitution. y^2− 4x^2 = 7 9y^2+16x^2 = 323

asked by Tom on November 9, 2012
84. ## math

Solve for X 0.0421=0.0015-x/0.025+1/2 i'm lost

asked by ana on March 9, 2012
85. ## maths

a+b/a-b + a²-4b²/a²-b² - a-3b/a+b How to solve this question and how to take the LCM of followings?.

asked by anonymous on March 23, 2016
86. ## MATH

asked by N on March 3, 2014
87. ## math

Use a table of values to graph the equation. solve for y x= -1,0,1 y= y=2/3x+6

asked by Hannah on November 30, 2010
88. ## ^Maths^

Need Help~solve: 6/3(4-2) I was told to choose answer from Options: (A)6 (B)1 (C)2 (D)4

asked by Ekingdeft on January 2, 2015
89. ## graphing

Can someone shwo me how to solve these inequalties for me? -6 < x and 3 < 6 (Remember this is an "and" statement) -3x < -6 or x + 5 < -2 x - 2 > 2x + 1 or -10 > -2x - 2

asked by mike on May 17, 2007
90. ## Math

Solve for Y: 96y-432=84y+192

asked by Sabina on October 24, 2010
91. ## Algebra 1

Use the quadratic formula to find the x value that will solve the equation 2x^2-3x+10=0

asked by Pat on September 24, 2007
92. ## Math

Solve the simultaneous equations in Z24, 3x+4y=18 12x+7y=4 Thanks!

asked by Anonymous on August 8, 2013
93. ## linear algebra

How do I solve by substitution? X^2 + Y^2 = 1 -X + ã 3Y = 0 The answer is X= ã 3/2 Y= 1/2 S={ (ã 3/2, 1/2), (-ã 3/2, -1/2)} I don't know how to go about solving it.

asked by beatriz on January 19, 2011
94. ## Calculus

Given f(x)=−2x^3 -3x + 1, the value of the derivative of the inverse function, f^−1(x) at x=−21 is (f^1)′(−21)= ? please explain how to solve this

asked by Ann on April 3, 2014
95. ## math

plz help solve 6(4x+7)+x simply it plzz!thx for ur help

asked by t on October 24, 2012
96. ## Math

Solve; multiply; then reduce to lowest terms 5 1/2 * 3/4

asked by Susan on April 14, 2012
97. ## math

How do i solve inequalitites with three variables. I still can't figure it outplease help. x+y=1 y-z=-3 2x+3y+z=1

asked by Jasmine202005 on October 22, 2006
98. ## math

Solve each equation by factoring v(squared) - 10v + 21 = 0

asked by Help on August 7, 2013
99. ## pre algebra

solve equation.. i continually keep getting this problem wrong x/3=x/5-2

asked by jerson on November 15, 2009
100. ## geometry

POSTULATES: how do I solve angle postualates? what are the steps?

asked by shaanti on September 14, 2009