Answer
Solution Set:
$x \ge 7$
Refer to the image below for the graph.
Work Step by Step
Add 5 on both sides of the inequality to obtain:
$x \ge 2+5
\\x \ge 7$
On a number line, the numbers that are greater than or equal to $7$are found from $7$ to the right.
Thus, to graph the solution set on a number line, plot a solid dot at $x=7$ and shade the region to its right. (refer to the attached image in the answer part above)