Solve for x
x\geq 0
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2x-8x\leq 0
Subtract 8x from both sides.
-6x\leq 0
Combine 2x and -8x to get -6x.
x\geq 0
Product of two numbers is ≤0 if one is ≥0 and the other is ≤0. Since -6\leq 0, x must be ≥0.
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Limits
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