SOLUTION: whats x + y =12 and x - y =-8 solve for x

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Question 964685: whats x + y =12

and x - y =-8 solve for x
Found 3 solutions by Fombitz, Alan3354, stanbon:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Add the two equations together,
x%2By%2Bx-y=12-8
2x=4
Now solve for x.
Then go back and use either equation to solve for y.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
x + y =12
x - y =-8
--------------- Add

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!

x + y =12
x - y =-8
---------
Add and solve for "x":
2x = 4
x = 2
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Cheers,
Stan H.
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