Solve for z
z\geq -\frac{7}{2}
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-2z\leq -3+10
Add 10 to both sides.
-2z\leq 7
Add -3 and 10 to get 7.
z\geq -\frac{7}{2}
Divide both sides by -2. Since -2 is negative, the inequality direction is changed.
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