Let's solve the equation step by step and fill in the blanks.
Starting with the equation:
\[ 10x + 13 = -12 \]
- Subtract 13 from both sides:
\[ 10x = -12 - 13 \]
Calculating the right side:
\[ 10x = -25 \]
So, the first blank is:
\[ 10x = -25 \]
- Now divide both sides by 10:
\[ x = \frac{-25}{10} \]
Reducing the fraction gives:
\[ x = -2.5 \]
So, the second blank is:
\[ x = -2.5 \]
In summary, the completed solution is:
- \( 10x + 13 = -12 \)
- \( 10x = -25 \)
- \( x = -2.5 \)