Answer
$x\approx2.816$
Work Step by Step
Take the log of both sides, and then use the power property.
$7^x=240$
$x\log7=\log240$
$x=\frac{\log240}{\log7}$
$x\approx2.816$
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.