Solve for x

To solve for \( x \) in the equation \(-20 = -5 + 3x\), follow these steps:

1. Add 5 to both sides of the equation to isolate the term with \( x \):

\[
-20 + 5 = 3x
\]

2. This simplifies to:

\[
-15 = 3x
\]

3. Now, divide both sides by 3 to solve for \( x \):

\[
x = \frac{-15}{3}
\]

4. Simplifying the right side gives:

\[
x = -5
\]

So the solution is:

\[
\boxed{-5}
\]