SOLUTION: -2x+4y=10 2x-5y=-14

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Question 811058: -2x+4y=10
2x-5y=-14
Answer by erica65404(394) About Me  (Show Source):
You can put this solution on YOUR website!
-2x%2B4y=10
2x-5y=-14
We are going to solve the first problem for x.
-2x%2B4y=10
-2x=-4y%2B10
x=2y-5
plug this equation into the second equation. x can be substituted for 2y-5.
2%282y-5%29-5y=-14
4y-10-5y=-14
-y-10=-14%0D%0A%7B%7B%7B-y=-4
y=4
Now we know what y is, so plug this into either equation to find x.
-2x%2B2%284%29=10
-2x%2B8=10
-2x=2
x=-1
The solution is (-1,4). This is the point where these 2 lines cross.