Answer:
A number line from negative 5 to 5 in increments of 1. An open circle is at 3 and a bold line starts at 3 and is pointing to the right.
Explanation:
Given

Required
Describe the number line
We have:

Open brackets

Collect like terms


Divide by -18 (the inequality changes)

means that the arrow on the number line points to the right, and it makes use of an open circle that starts from 3.