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OpenStudy (anonymous):
solve a-b=2 a+b=2
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OpenStudy (anonymous):
Solve for?
OpenStudy (anonymous):
Add the equations. a-b=2 + a+b=2 ======= 2a+0 = 4
OpenStudy (anonymous):
Then solve for a, and plug back into either equation to find b.
OpenStudy (dumbcow):
a=2 b=0
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