SOLUTION: x+2y=-4 4y=3x+12

Question 304332: x+2y=-4
4y=3x+12
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
x+2y=-4
2y=-x-4 multiply by -2 & add
4y=3x+12
-4y=+2x+8
-------------
0=5x+20
5x=-20
x=-20/5
x=-4 ans.
-4+2y=-4
2y=-4+4
2y=0
y=0 ans.
Proof:
4*0=3*-4+12
0=-12+12
0=0
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