SOLUTION: solve by elimination -3x+2y=-21 -x-y=-2 show all steps and work

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Question 876592: solve by elimination
-3x+2y=-21
-x-y=-2
show all steps and work
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply the second equation by 2 and add the equations together.
-3x%2B2y-2x-2y=-21-4
-5x=-25
x=5
Then use either equation to solve for y.
-5-y=-2
y=-5%2B2
y=-3