To solve the inequality \( x + 15 \geq 3 \), follow these steps:
- Subtract 15 from both sides of the inequality: \[ x + 15 - 15 \geq 3 - 15 \] This simplifies to: \[ x \geq -12 \]
Now, you have the inequality in the form where \( x \) comes first:
\[ x \geq -12 \]