To solve the equation \(-0.1w + 23.2 = -0.8\), follow these steps:
- Subtract 23.2 from both sides:
\[ -0.1w = -0.8 - 23.2 \]
\[ -0.1w = -24 \]
- Divide both sides by \(-0.1\):
\[ w = \frac{-24}{-0.1} \]
\[ w = 240 \]
So, the solution is:
\[ w = 240 \]