SOLUTION: i need help on solving this:-2x+3y=-14 2x+2y=4 solve for x and y

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Question 13030: i need help on solving this:-2x+3y=-14
2x+2y=4 solve for x and y
Answer by elima(1433) About Me  (Show Source):
You can put this solution on YOUR website!
-2x+3y=-14
2x+2y=4 solve for x and y
First you want o get an answer for one of the variables, so you solve one equation,
2x+2y=4
2x=4-2y
x=%284-2y%29%2F2
Now we have an answer for x(we aren't done yet, that is not the final answer for x.) So lets plug that in the equation for the x.
-2%28%284-2y%29%2F2%29%2B3y=-14
-4+2y+3y=-14
5y=-10
y=-2
Now you have the answer for y, lets now go back to the equation and find out what x=
2x+2(-2)=4
2x-4=4
2x=8
x=4
Check:
2(4)+2(-2)=4
8-4=4
4=4
Hope you understand
=)