Solve for b
b\geq -1
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b+4\geq \frac{9}{3}
Divide both sides by 3. Since 3 is positive, the inequality direction remains the same.
b+4\geq 3
Divide 9 by 3 to get 3.
b\geq 3-4
Subtract 4 from both sides.
b\geq -1
Subtract 4 from 3 to get -1.
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