SOLUTION: Solve the system of equations by the additon method 3x+3y=-15 2x-4y+32

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Question 367723: Solve the system of equations by the additon method
3x+3y=-15
2x-4y+32

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
3x%2B3y=-15
1.x%2By=-5
.
.
2x-4y=32
2.x-2y=16
Subtract eq. 1 from eq. 2,
x-2y-x-y=16-%28-5%29
-3y=21
highlight%28y=-7%29
Then from eq. 1,
x-7=-5
highlight%28x=2%29