SOLUTION: What is the solution set of x+y=7 and x-y=1?

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Question 194184: What is the solution set of x+y=7 and x-y=1?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=7
x-y=1 add.
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2x=8
x=8/2
x=4 ans.
4+y=7
y=7-4
y=3 ans.
proof:
4-3=1
1=1