We are asked to solve the equation $30 = 10 + \frac{x}{4}$ for the variable $x$.

1. Problem Description

We are asked to solve the equation $30 = 10 + \frac{x}{4}$ for the variable $x$.

2. Solution Steps

First, we subtract 10 from both sides of the equation:

$30 - 10 = 10 + \frac{x}{4} - 10$

$20 = \frac{x}{4}$

Next, we multiply both sides of the equation by 4:

$20 \cdot 4 = \frac{x}{4} \cdot 4$

$80 = x$

Therefore, $x=80$.

3. Final Answer

$x = 80$