Answer
$x = 1/e$
Work Step by Step
Rule: $a = \log_{b}(b^{a})$
$ -1 = \ln e^{-1} = \ln 1/e$
$\ln (x) = \ln 1/e$
$x = 1/e$
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.