Solve for x
x\leq 4
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10x+160-20x\geq 120
Use the distributive property to multiply 20 by 8-x.
-10x+160\geq 120
Combine 10x and -20x to get -10x.
-10x\geq 120-160
Subtract 160 from both sides.
-10x\geq -40
Subtract 160 from 120 to get -40.
x\leq \frac{-40}{-10}
Divide both sides by -10. Since -10 is negative, the inequality direction is changed.
x\leq 4
Divide -40 by -10 to get 4.
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