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Mathematics 30 Online
OpenStudy (anonymous):

solve a-b=2 a+b=2

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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