Solve for x
x\geq 4
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-3x\leq -12
Subtract 12 from both sides. Anything subtracted from zero gives its negation.
x\geq \frac{-12}{-3}
Divide both sides by -3. Since -3 is negative, the inequality direction is changed.
x\geq 4
Divide -12 by -3 to get 4.
Examples
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Matrix
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Limits
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