Answer
$x=-\ln{2}$
Work Step by Step
$8-2e^{-x}=4\\-2e^{-x}=-4\\e^{-x}=2\\\ln{e^{-x}}=\ln{2}\\-x=\ln{2}\\x=-\ln{2}$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 5 - Exponential and Logarithmic Functions - Chapter Review - Chapter Test - Page 348: 16
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