Answer
$x\leq-3$
Work Step by Step
The solid circle at the endpoint means that -3 is included in the solution.
Since the arrow points left, the solution is everything less than or equal to -3.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.