Answer
$f^{-1}(x) = \frac{x - 5}{3}$
Work Step by Step
f(x) = 3x + 5
y = 3x + 5
y - 5 = 3x
$\frac{y - 5}{3} = x$
$\frac{x - 5}{3} = f^{-1}(x)$
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.