SOLUTION: HEY EVERYBODY .. I NEED SOME HELP SOLVE THIS EXPRESSION.. 2x+5y = 20 -3x+2y= 12 I HAVE TO FIND THE X- COORDINATE..

Question 694719: HEY EVERYBODY .. I NEED SOME HELP SOLVE THIS EXPRESSION..
2x+5y = 20
-3x+2y= 12
I HAVE TO FIND THE X- COORDINATE..
Answer by 55305(86) (Show Source): You can put this solution on YOUR website!
We can solve this by system of equations.if you want to find x, we must get rid of y. the LCM of 5 and 2 is 10, so we need to multiply the top equation by 2 and the bottom one by 5.

now we can subtract the bottom equation from the top to get:
(4x+10y=40)
-(-15x+10y=60)
________________
19x=-20
x=-20/19, if you plug that into any of the equations, y would equal 84/19
RELATED QUESTIONS
I really need help understanding how to answer these questions using the addition... (answered by stanbon)

I need to solve the 4x4 equation: w+3x-2y+z=11 2w-3x+3y-4z=-29 5w+x-2y+3z=5... (answered by richwmiller)

Multiply the following functions. {{{(2x^2 - x -3)/(3x^2 + 7x + 4) * (3x^2 - 11x -20) (answered by Earlsdon,bucky)

Hi, I need some help, would you be able to help me with this? Solve the following... (answered by nabla)

Hey I need some help with finding the y-intercept of x-2y=4.... (answered by elima)

Question 876949: Problem 1). y=-3x-12 Problem 2). y=2x+10 Problem 3). x-2y=8... (answered by rothauserc)

I'm trying to solve this problem by substitution and I could use some help. x=2y+1... (answered by macston)

Please!!I need help. I have to solve the following systems by method of my choice. #1... (answered by ankor@dixie-net.com)

hi everybody, i have a question from functions that i can't quite solve the question is... (answered by jim_thompson5910)