SOLUTION: 3x-y=11 2x+2y=18

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Question 218457: 3x-y=11
2x+2y=18
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3x-y=11 MULTIPLY BY 2 & ADD.
2x+2y=18
6X-2Y=22
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8X=40
X=40/8
X=5 ANS.
3*5-Y=11
15-Y=11
-Y=11-15
-Y=-4
Y=4 ANS.
PROOF:
2*5+2*4=18
10+8=18
18=18