SOLUTION: how do you solve the system of equations by graphing. The question is x+y=7 and x-y=-1

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Question 343602: how do you solve the system of equations by graphing. The question is x+y=7 and x-y=-1
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Add the equations together.
x%2By%2Bx-y=7-1
2x=6
highlight%28x=3%29
Now use either equation to solve for y.
3%2By=7
highlight%28y=4%29
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