Solve for x
x\leq -3
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4x-x\leq -9
Subtract x from both sides.
3x\leq -9
Combine 4x and -x to get 3x.
x\leq \frac{-9}{3}
Divide both sides by 3. Since 3 is positive, the inequality direction remains the same.
x\leq -3
Divide -9 by 3 to get -3.
Examples
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Matrix
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Simultaneous equation
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Limits
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