Solve for r

To solve for \( r \) in the equation

\[
-4 = \frac{r}{20} - 5,
\]

follow these steps:

1. Add 5 to both sides of the equation:

\[
-4 + 5 = \frac{r}{20}
\]

This simplifies to:

\[
1 = \frac{r}{20}.
\]

2. Next, multiply both sides by 20 to isolate \( r \):

\[
20 \cdot 1 = r,
\]

which gives:

\[
r = 20.
\]

Thus, the solution is

\[
\boxed{20}.
\]