# 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 418-
## math

-x squared -2x +4 solve quadratic equation by factoring

*asked by michell on February 21, 2013* -
## Algebra

(x-3)/(x^2-4x+3) Hello My name is Megan Watt, and I have no idea how to solve this. I am so lost.

*asked by Megan Watt on February 16, 2011* -
## calculus

solve the initial value problem by separation of variables dy/dx=y^(2)+1, y(1)=0

*asked by james on March 17, 2011* -
## math

How do u solve this I(-2)(2)I +8-6 I3I +3(-2) an the "I" represents a parellel line

*asked by Anonymous on December 20, 2010* -
## Math (kindergarten)

Break apart the addends. Solve for the total sum. 18 + 21 --------

*asked by Anonymous on October 10, 2012* -
## Inequalities

Write two different inequalities that you can solve by adding 5 and multiplying by -3.

*asked by Student on December 13, 2015* -
## Math

(c^6/7 q^5/7)^4/7 To solve would I add the 6+7=13 (cq^13)^4/7 then i end up with cq^28561 I think I am missing something

*asked by Abby F on November 3, 2011* -
## Algebra 2 (Diophantine Equation)

7x + 16y = 225 Solve using Diophantine equations.

*asked by Peter on October 6, 2011* -
## math

how to solve identity property,2nd grade

*asked by tyler on October 24, 2012* -
## Algebra

r=radius 235.619=(15.64)(r)^2+(4.16)(r)^2 How would I solve this problem?

*asked by Guillermo on December 6, 2014* -
## Math

Diffrentiate implicitly with respect to x. Solve for y' 3xy - 2x^2 + 5y^2 =7

*asked by Kevin on November 29, 2014* -
## Math

How do I solve this math problem. -2-10a=158

*asked by Robert on January 23, 2013* -
## math

solve with distributive property 7(w-5)=-35 7w-35=-35 If add 35 to both sides i get zero 7w=0 so w=0?

*asked by deedra on January 6, 2009* -
## help with one question please!!

2. Solve the following proportion. r over five equals nine over twenty-one (1 point) r = 2.14 r = 9 r = 11.66 r = 37.8

*asked by josh on December 17, 2013* -
## math

solve for t 13e^(.081t)=25e^(.032t)

*asked by maddie on January 6, 2009* -
## math

X=e^(6)(.075) how would u solve that the answer is x=1.5683, however i keep getting 30.257

*asked by Harold on September 25, 2011* -
## Algebra

solve the equation by completing the square 3x^2-12x+1=0

*asked by Lily on November 16, 2010* -
## math

HOW do I solve this equation? 6X -5(-X - 13)=131. WHAT IS THE RULE OF ORDER TO DO THIS? THANK YOU

*asked by sam on February 19, 2015* -
## math

Evaluate: 3^2 + 2^2 x 5 - sqrt 25 over 8 - 4 / 2 + 2 I am confused on the order in which I solve this. Please help!

*asked by Jim on April 29, 2009* -
## math

How would I find the a for the equation y= a(x-h)^2+k. I'm looking at a graph, and I can solve for everything except for a. What is it supposed to be?

*asked by Erica on March 6, 2008* -
## Math

How do you solve the following equation x2 - 5x = 14 x2 - 5 x - 14 = 0 (x - 7) (x + 2) = 0 x = 7 or x = -2 How do I explain this to my son who was not taught this way???

*asked by Jake on September 9, 2008* -
## MATH- PLEASE HELP

Solve the compound in equality. I don't know how 5>-3x + 4 or 9 to -4x2. THANK YOU!!!

*asked by kalaya on September 29, 2010* -
## math-solving for X

solve for x: 1. x = (m/n)x + 2 2. x = [2/x] - [2/(2x+1)] = 1/(x+1) I don't understand how to properly isolate X to get the value of x...please help!

*asked by anonymous on September 22, 2007* -
## math

Solve the trigonometric equation from 0¡ã¡Üx¡Ü360 tanx+¡Ì3=0

*asked by Anonymous on June 4, 2015* -
## math

How do you solve/simplify 32x^3y^4. 3X Over. Times 24x^3y^2. 9Y

*asked by ava on December 4, 2014* -
## Math

Can someone please explain to me how to solve this: Simplify 6P2. A) 30 B) 15 C) 12 D) 720

*asked by Carl on April 23, 2015* -
## Math

solve the exponential function for x by using common logarithms. 5^x=50^x+1

*asked by Help Please! on December 11, 2015* -
## MATH- Algebra 2

Solve each quadratic in form equation. 1. 4y^4+9=13y^2 2. x-3x^1/2+2=0 3. (x-5)^2+2(x-5)-35=0 4. (x-2)^2-3x-2)+2=0 5. 2(x^2-5)^2-13(x^2-5)+20=0 6. 2x^2/3+5x^1/3-6=0 7. 6x^2/3-5x^1/3-6=0 8. x^-2+4x^-1=12 9. x^4-8x^2+7=0 10. x^4-2x^2-35=0 can someone please

*asked by Blair on February 17, 2013* -
## calculus

solve the initial value problem by separation of variables 8. dy/dx=x+1/xy, x>0, y(1)=-4

*asked by mike on March 18, 2011* -
## math

Can anyone please teach me how to solve for x in terms of a,b,c in this problem? Thanks a lot! ax^2+bx+c=0

*asked by Connie on February 14, 2008* -
## alg 2 check?

The polynomial 15xy+3x^3y^4 is what degree? I do not understand how to solve this

*asked by tyneisha on July 15, 2013* -
## 9th grade-Math

How do you solve this equation? 35x^2-49x __________ -7x

*asked by Kira on June 4, 2010* -
## math

solve 7^(11/13) would the answer be 7^-2 don't you subtract the Poweras or is it 2/7?

*asked by Abby F on November 3, 2011* -
## Xuha's Guideline Center (maths)

Solve graphically the following simultaneous linear Equations X-Y/3=2 X-5y=0

*asked by Sidra on March 6, 2015* -
## metods

solve for newton raphson f(x)=5sinx^2-8cosx^5

*asked by carlos on March 8, 2016* -
## trig

solve for x log4 64+ log2 2 ________________ =x log3 81

*asked by Beth on February 28, 2012* -
## Maths

Solve Graphically the following simultaneous linear equations 2y-3x=12 x+6=y

*asked by Sidra on March 6, 2015* -
## algebra

I do not know how to solve the following systems of linear equations in 3 variables 1) x-2y+z=7 2) 2x+y-3z=-1 3) x-4y+3z=13

*asked by ashley on April 2, 2012* -
## algebra

solve the quadratic equation by completing the square -3x^2+9=1

*asked by helen on December 18, 2013* -
## Maths

Solve Graphically the following simultaneous linear equations 5x+7y=13 7x+6y=3

*asked by Sidra on March 6, 2015* -
## separation of variables

solve the initial value problem by separation of variables dy/dx=x2/y given y=-5 when x=3

*asked by seth on March 19, 2011* -
## math

Solve for all real values of x is 9^x+2=240+9^x THIS ONE IS HARD

*asked by Ryan on June 6, 2015* -
## trig

rewrite each equation in polar form. solve for r if possible a. 2x+3y=5 b. y=1/2x

*asked by trig on November 25, 2014* -
## Math

can you please help me solve this quadadratic equasionby factoring : x^2-8x+16 would this be the right way 8x^3+16 to start

*asked by nadine on October 8, 2008* -
## Engineering Maths

Pleas help solve the ffg. differential equation: dy/dx-(1+1/x)y=y^2

*asked by Taldil on February 22, 2013* -
## algebra

i do not understand how to solve for x and y can someone please explain it to me. an example of the problem i am workin on is 6x-4y=72

*asked by anon on April 3, 2011* -
## Math

How do I find the radius if the circle is 6inches how do I solve

*asked by Dominic on April 17, 2013* -
## algebra

how do i solve the equation 34x^4-85x^3+51x^2=0

*asked by sarah on May 18, 2010* -
## maths

solve the simultaneous equations: y=x-2 ysquared+xsquared=10

*asked by nabiha on November 3, 2011* -
## maths

Solve this anagram of a famous mathematician: ghetgNlai

*asked by rose on August 4, 2016* -
## Math

How do I find the radius if the circle is 6inches how do I solve

*asked by Dominic on April 17, 2013* -
## prealge

how do you solve this original price 60$ and discount percent: 20%

*asked by vick on February 22, 2012* -
## algebra

For what values of x is the following expression: 1/(x^2-25). How do you solve and determined the undefined value? Thanks!

*asked by Swtpllypb on September 12, 2009* -
## Perform the indicated operations

X I I I x I V 10 1 1 1 x 1-5= 4 right above i have what each numerical # represents but i don't no if that's correct so far. How do i solve this?

*asked by Rina on March 16, 2011* -
## Math

How can one solve this equation for t with decimals? Y = 1.3 + 18.8 t - (g/2) t^2 = 0 (Assume g = 9.8 m/s^2, the value on Earth)

*asked by Anonymous on January 21, 2012* -
## trig maths

rewrite 7 sin2A – 5 sin A + cos2A = o to solve for A

*asked by inno on April 4, 2011* -
## Math

y=4-2x^2+1/6x^4 How to find x and y-intercepts. I think y=0 but I don't know how to solve for the x-intercept.

*asked by Anonymous on December 8, 2014* -
## Math

I’ve tried to solve this problem multiple times, but I can never get the right answer. Can someone please help? 3(3/7)^-2 + 2/3

*asked by Nikko on February 28, 2018* -
## Trig

Solve 2cosxsinx + sinx = 0 using unit circle.

*asked by don on November 2, 2011* -
## maths

solve this anagram please. its a famous mathematician ghetgninlai

*asked by Anonymous on August 6, 2016* -
## math

use the quadratic formula to solve the equation: x^2+10x-10=0

*asked by key on January 4, 2009* -
## Math

Solve for 5 X 3 to the nth,. my answer is 15, 45, 135, 405

*asked by steve on May 11, 2014* -
## algebra

Can you help me solve for like terms: x - 14y + 3x - 1 2 - 10x - 3 + y 19x - 3y - 37 - y

*asked by sarah on October 9, 2013* -
## math

how write a number story that solve by adding

*asked by ishmam on April 3, 2011* -
## algebra

How do I solve for r in this equation. I can't remember what to do with the negative exponent. w=Cr^-2

*asked by Carson on March 6, 2010* -
## math

Given the simple interest formula, I = Prt, solve for t

*asked by gabe on May 11, 2009* -
## math

How do inverse operations help solve algebraic equations

*asked by hunter on September 19, 2018* -
## algebra

Solve the following equation for p: 5s - 3p = fp + 12 the fp is confusing me so much, I've tried solving it so many times but this keeps getting me

*asked by Kelley on September 30, 2017* -
## Algebra

I don't know how to solve this homework problem. 1 over x+h - 1 over x ________________________ all over h Can you help?

*asked by Heather on February 9, 2006* -
## precalculus

Hi does anyone know how to solve this equation into parabola form? thanks x^2 + 2xy +3y^2 = 9

*asked by jane on February 21, 2011* -
## Geometry

JK=2x+1 KL=6x JL=81 K is between J and L. Use the Segment Addition Postulate to solve for the variable

*asked by Sydney on September 4, 2017* -
## chemistry

Cu+ S2- what name does that make an how do you solve it? is it CuS2 copper sulfide?

*asked by nini on September 22, 2011* -
## Math

How to solve this (2x+5)/(x+1) > (x+1)/(x-1) and graph? I tried this and got (x+3)(x-2) and got -32 which isn't right the right answer is x

*asked by Amy~ on September 27, 2010* -
## trig

Solve for all real values of x 3cos2x - 5cosx = 1

*asked by Miranda on August 12, 2010* -
## Math

Solve the question: sin(2x)=cos(x), for values of x between 0 and 2 Pi

*asked by Ryomasa on September 3, 2008* -
## math

Which one of the following is an even number? A. 198^7 B. 19x98 C. 19^87 D. 1+9+87 I know I can just solve each one but is there a faster way?

*asked by Artem on August 13, 2014* -
## Math

Simplify the expression 6P3. I don't know how to solve it so if you could help me with it as well i would really appreciate it.

*asked by David on April 23, 2015* -
## Science gr 8

What are three problems that fluid technology helps solve?

*asked by Hello on May 4, 2009* -
## math

how to solve this need to change to equivalent divisio with a whole number 0.4/9.16

*asked by samantha on March 15, 2013* -
## math

Solve the equation for the indicated variable. Please helpppp!!!!! :( A=(730x)/(d^2) for x

*asked by Andrea on September 21, 2018* -
## PHYSICS

m1v1+m2v2=m1vf+m2vf solve for (vf)

*asked by EMMA on July 11, 2014* -
## math

x/8+x/12+x/2+28=x ? how to solve this equation? do I have to fine same common denominator?

*asked by Demora on September 12, 2009* -
## Math/Trig

Solve: 2 cos2 x - 3 cos x + 1 = 0 for 0 is less than or equal to x is less than 2pi.

*asked by CJ on January 20, 2011* -
## Algebra

Solve the following equation. 16x-8square roots of x = 35

*asked by Vicki on April 22, 2015* -
## 10th grade math

how to solve triangles with parrellel lines running through them!

*asked by d on May 19, 2010* -
## algebra

please please explain solve using the addition and multiplication principles 5 + 2x

*asked by algebra yuck on September 12, 2009* -
## Trig

Solve the right triangle ABC using the given information: cos A = 2/5 ; c = 15

*asked by Anonymous on May 19, 2010* -
## Math

Solve the inequality. -(x-1)>2(x+1/2) I don't understand how the answer is 0.

*asked by Heather on August 25, 2010* -
## MATH

√5sec²x-2secx=5 i have to solve this equation on the interval [0, 2π).

*asked by Katie on February 22, 2012* -
## math

solve the following inequality. 24x-55

*asked by sue on April 22, 2013* -
## Math

How have proportions been useful to solve various math problems that we have studied?

*asked by Nabila Rahman on October 7, 2008* -
## Pre-Calculus

Here is correct question: Solve sin (pi/4*(x-6))=0.5, 0

*asked by Hanu on January 11, 2014* -
## Algebra

(x-3)/(x^2-4x+3) Hello My name is Megan Watt, and I have no idea how to solve this. I am so lost.

*asked by Anonymous on February 16, 2011* -
## math

Solve; 5X2 - 8 X + 3 = 0 using the quadratic formula . the 2 is second power

*asked by Minnie on April 16, 2009* -
## pure maths,accounting,economics,business studies

Guys my problem is maths solve x and graphs

*asked by xola sentile on April 19, 2016* -
## Math

After solve a function I get these X>_-1(greater than equal to) X>_3 & X>_2?what will be it's domain?

*asked by X on July 14, 2016* -
## Math

How can you use a proportion to solve a percent word problem?

*asked by Cade on November 20, 2009* -
## algebra

On the problem 9x+7y=4 x=23-4y solve by substitution Do you mean to put 9 in the place of x=23-4y (9x=23-4y)

*asked by Terri on November 26, 2009* -
## Math

Solve the linear equation: -8.3=x+6.1 My answer is -14.4 Is this correct? Thanks.

*asked by B.B. on September 20, 2009* -
## Algebra

Please help me simplify the expressions and solve the equations? 1. v^2 + v - 12/ v^2 + 6v + 8 divided by 2v - 6/ v +2 2. 2/ b-2 = b/ b^2 - 3b +2 + b/ 2b - 2 3. 1/ x-2 + 2x/ (x-2)(x-8) = x/ 2(x-8) 4. (m^2 + 2m + 1/ m^3 + 3m^2 + 3m +1 (m^2/m - 3m/3) Thanks!

*asked by Student on March 28, 2014*

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