Answer
$$y=\frac{x+7}{3}$$
Work Step by Step
Finding the inverse by switching the two variables:
$$x=3y-7\\ y=\frac{x+7}{3}$$
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.