Answer
$$y=-\frac{1}{3}x+3$$
Work Step by Step
Isolating y on one side of the equation, we find:
$$x-9=-3y \\ y=-\frac{1}{3}x+3$$
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.