It looks like you have an equation that needs to be solved. Let's break it down step by step.

The equation is:
\[ 4(5 - x) = 0 \]

To solve for \( x \), follow these steps:

1. **Distribute the 4**:
\[ 4 \cdot (5 - x) = 0 \]
\[ 20 - 4x = 0 \]

2. **Isolate the term with \( x \)**:
\[ 20 - 4x = 0 \]
Subtract 20 from both sides:
\[ -4x = -20 \]

3. **Solve for \( x \)**:
Divide both sides by -4:
\[ x = \frac{-20}{-4} \]
\[ x = 5 \]

So, the solution to the equation \( 4(5 - x) = 0 \) is:
\[ x = 5 \]