To solve the equation \( 10x + 13 = -12 \), we can follow these steps:
-
Subtract 13 from both sides:
\[ 10x + 13 - 13 = -12 - 13 \]
This simplifies to:
\[ 10x = -25 \]
-
Divide both sides by 10:
\[ \frac{10x}{10} = \frac{-25}{10} \]
This simplifies to:
\[ x = -2.5 \]
So the complete solution is:
- Subtract 13 from both sides to get \( 10x = -25 \).
- Divide both sides by 10 to get \( x = -2.5 \).