Solve for a
a\leq \frac{1}{2}
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-2a\geq -1
Subtract 1 from both sides. Anything subtracted from zero gives its negation.
a\leq \frac{-1}{-2}
Divide both sides by -2. Since -2 is negative, the inequality direction is changed.
a\leq \frac{1}{2}
Fraction \frac{-1}{-2} can be simplified to \frac{1}{2} by removing the negative sign from both the numerator and the denominator.
Examples
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