To solve the inequality \( x + 3 \leq 7 \), we start by isolating \( x \).
- Subtract 3 from both sides: \[ x \leq 7 - 3 \] \[ x \leq 4 \]
The solution \( x \leq 4 \) means that \( x \) can take any value less than or equal to 4.
On a number line:
- There should be a closed circle at 4 (indicating that 4 is included in the solution).
- The line should extend to the left (indicating all values less than 4).
Based on the descriptions provided, the correct choice is:
A number line with arrows at both the ends ranges from negative 10 to 10 in unit increments. A closed circle is marked on the tick line above 4. A line is drawn from 4 toward negative 10 with an arrow at the end.
This choice accurately represents the solution \( x \leq 4 \).