SOLUTION: solve the equation x-y=-1 x+y=9

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Question 980875: solve the equation x-y=-1
x+y=9
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Add the equations together to eliminate y.
x-y%2Bx%2By=-1%2B9
2x=8
Solve for x.
Then use either equation to solve for y.