Solve for x
x\leq -1
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-x-2x\geq 3
Subtract 2x from both sides.
-3x\geq 3
Combine -x and -2x to get -3x.
x\leq \frac{3}{-3}
Divide both sides by -3. Since -3 is negative, the inequality direction is changed.
x\leq -1
Divide 3 by -3 to get -1.
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