Answer
$\dfrac{1}{3}y-7$
Work Step by Step
The description, "$7$ less than one-third $y$," translates to
\begin{array}{l}\require{cancel}
\dfrac{1}{3}y-7
.\end{array}
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.