Solve for w
w\geq 7
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\frac{28}{4}\leq w
Divide both sides by 4. Since 4 is positive, the inequality direction remains the same.
7\leq w
Divide 28 by 4 to get 7.
w\geq 7
Swap sides so that all variable terms are on the left hand side. This changes the sign direction.
Examples
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