Solve for k
k\leq 3
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-5k\geq -15
Subtract 15 from both sides. Anything subtracted from zero gives its negation.
k\leq \frac{-15}{-5}
Divide both sides by -5. Since -5 is negative, the inequality direction is changed.
k\leq 3
Divide -15 by -5 to get 3.
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