SOLUTION: X=-y+7
X-y=-9
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Question 1047171: X=-y+7
X-y=-9
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
X=-y+7
X-y=-9
x+y=7, adding y to both sides of first. Now add the two.
2x=-2, the y s disappear
x=-1 divide by 2 both sides
substitute into first to get y
-1=-y+7; y=8
check (-1,8) in second equation
-1-8=-9. checks.
(-1,8) answer
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