## Algebra 1: Common Core (15th Edition)

$x=\frac{a(y+b)}{b}$
$\frac{x}{a}-1=\frac{y}{b}$ Add 1 to both sides. $\frac{x}{a}=\frac{y}{b}+1$ 1 is also equal to $\frac{b}{b}$. $\frac{x}{a}=\frac{y}{b}+\frac{b}{b}$ Add. $\frac{x}{a}=\frac{y+b}{b}$ Multiply each side by a. $x=\frac{a(y+b)}{b}$