Solve for p
p=-4
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12+8p=-20
Swap sides so that all variable terms are on the left hand side.
8p=-20-12
Subtract 12 from both sides.
8p=-32
Subtract 12 from -20 to get -32.
p=\frac{-32}{8}
Divide both sides by 8.
p=-4
Divide -32 by 8 to get -4.
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