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-x -7y = 9 -x + 9y = -23

-x -7y = 9 -x + 9y = -23
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2 votes
-x -7y = 9
-x + 9y = -23

asked
User Didier Trosset
by
8.0k points

1 Answer

7 votes
subtract the equations to eliminate x:
9y-(-7y)=-23-9
16y=-32
y=-2
plug y=-2 in either of the equation to find x:
-x-7(-2)=9
x=-5
answered
User Marc Climent
by
8.2k points
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