The problem is to solve the linear equation $\frac{b}{3} + 15 = -8$ for the variable $b$.

1. Problem Description

The problem is to solve the linear equation $\frac{b}{3} + 15 = -8$ for the variable $b$.

2. Solution Steps

To solve the equation $\frac{b}{3} + 15 = -8$, we first subtract 15 from both sides of the equation:

$\frac{b}{3} + 15 - 15 = -8 - 15$

$\frac{b}{3} = -23$

Now, we multiply both sides of the equation by 3:

$3 \cdot \frac{b}{3} = 3 \cdot (-23)$

$b = -69$

3. Final Answer

$b = -69$