Solve for w
w\leq 70
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90-w\geq 20
Multiply both sides of the equation by 10. Since 10 is positive, the inequality direction remains the same.
-w\geq 20-90
Subtract 90 from both sides.
-w\geq -70
Subtract 90 from 20 to get -70.
w\leq \frac{-70}{-1}
Divide both sides by -1. Since -1 is negative, the inequality direction is changed.
w\leq 70
Fraction \frac{-70}{-1} can be simplified to 70 by removing the negative sign from both the numerator and the denominator.
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