Solve for b
b\leq -6
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-12b\geq 19+53
Add 53 to both sides.
-12b\geq 72
Add 19 and 53 to get 72.
b\leq \frac{72}{-12}
Divide both sides by -12. Since -12 is negative, the inequality direction is changed.
b\leq -6
Divide 72 by -12 to get -6.
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