To solve the inequality \( x + 10.5 < 20.2 \), we want to isolate \( x \).
- Subtract \( 10.5 \) from both sides:
\[ x < 20.2 - 10.5 \]
- Calculate the right side:
\[ 20.2 - 10.5 = 9.7 \]
So, the inequality becomes:
\[ x < 9.7 \]
To write the inequality with \( x \) coming first, we can write it as:
\[ x < 9.7 \]