To solve the inequality \( x + 15 \geq 3 \) and write it in a way that \( x \) comes first, follow these steps:
- Subtract 15 from both sides of the inequality:
\[ x + 15 - 15 \geq 3 - 15 \]
- Simplify:
\[ x \geq -12 \]
So the inequality written with \( x \) first is:
\[ x \geq -12 \]