Solve for b
b=-4
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4b+4=-12
Swap sides so that all variable terms are on the left hand side.
4b=-12-4
Subtract 4 from both sides.
4b=-16
Subtract 4 from -12 to get -16.
b=\frac{-16}{4}
Divide both sides by 4.
b=-4
Divide -16 by 4 to get -4.
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