SOLUTION: -x+y=1 x+y=11

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Question 185859: -x+y=1
x+y=11
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
-x+y=1
x+y=11 add these 2 equations.
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2y=12
y=12/2
y=6 ans.
-x+6=1
-x=1-6
-x=-5
x=5 ans.
Proof:
6+5=11
11=11