Solve for x
x\geq 8
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2x+80-4x\leq 64
Use the distributive property to multiply 20-x by 4.
-2x+80\leq 64
Combine 2x and -4x to get -2x.
-2x\leq 64-80
Subtract 80 from both sides.
-2x\leq -16
Subtract 80 from 64 to get -16.
x\geq \frac{-16}{-2}
Divide both sides by -2. Since -2 is negative, the inequality direction is changed.
x\geq 8
Divide -16 by -2 to get 8.
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