SOLUTION: Solve the system of equations: first: 4x-2y=2 second: y=-4x-7

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Question 345603: Solve the system of equations: first: 4x-2y=2
second: y=-4x-7
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.4x-2y=2+
2.y=-4x-7
Substitute eq. 2 into eq. 1,
4x-2%28-4x-7%29=2
4x%2B8x%2B14=2
12x=-12
highlight%28x=-1%29
Then from eq. 2,
y=-4%28-1%29-7
y=4-7
highlight%28y=-3%29