## Precalculus: Mathematics for Calculus, 7th Edition

$\frac{1}{2}x - 8 =1$ Solution: $x=18$
1. $\frac{1}{2}x - 8 =1$ 2. Add 8 to both sides: $\frac{1}{2}x=9$ 3. Divide both sides by $\frac{1}{2}$(equvialent to multiplying both sides by 2): $x=\frac{9}{\frac{1}{2}} = 18$