Solve for x
x\geq 0
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23x-x\geq 0
Subtract x from both sides.
22x\geq 0
Combine 23x and -x to get 22x.
x\geq 0
Product of two numbers is ≥0 if both are ≥0 or both are ≤0. Since 22\geq 0, x must be ≥0.
Examples
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Matrix
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Limits
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