Solve for f
f\geq 10
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2f\geq 24-4
Subtract 4 from both sides.
2f\geq 20
Subtract 4 from 24 to get 20.
f\geq \frac{20}{2}
Divide both sides by 2. Since 2 is positive, the inequality direction remains the same.
f\geq 10
Divide 20 by 2 to get 10.
Examples
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