Solve for s
s\leq -4
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-3s\geq 8+4
Add 4 to both sides.
-3s\geq 12
Add 8 and 4 to get 12.
s\leq \frac{12}{-3}
Divide both sides by -3. Since -3 is negative, the inequality direction is changed.
s\leq -4
Divide 12 by -3 to get -4.
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