Answer
$14+x$
Work Step by Step
The phrase tells us that we need the "sum of 14 and x." The word sum indicates that we add, so we add 14 and x to get 14+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.