Solve for b
b=36
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-\frac{1}{2}b=-3-15
Subtract 15 from both sides.
-\frac{1}{2}b=-18
Subtract 15 from -3 to get -18.
b=-18\left(-2\right)
Multiply both sides by -2, the reciprocal of -\frac{1}{2}.
b=36
Multiply -18 and -2 to get 36.
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