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7x+y=-9 -3x-y=5 solve by elimination

7x+y=-9 -3x-y=5 solve by elimination
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4 votes
7x+y=-9 -3x-y=5 solve by elimination

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User Grrrr
by
7.1k points

1 Answer

5 votes
7x + y = -9
-3x - y = 5
Add them together
4x = -4, x = -1
7(-1) + y = -9
-7 + y = -9, y = -2
Solution: x = -1, y = -2
answered
User Benjumanji
by
8.5k points
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