Question

solve for b.
$r=(1 + b)m$
$b = \square$

Explanation:

Step1: Isolate (1+b) term

Divide both sides by $m$:
$\frac{r}{m} = 1 + b$

Step2: Solve for $b$

Subtract 1 from both sides:
$b = \frac{r}{m} - 1$

Answer:

$\frac{r}{m} - 1$