Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 4 - Inverse, Exponential, and Logarithmic Functions - 4.5 Exponential and Logarithmic Equations - 4.5 Exercises - Page 469: 80

Answer

$6$

Work Step by Step

$\ln e^x-\ln e^{3}=\ln e^{3}\Rightarrow \ln e^x=2\ln e^{3}\Rightarrow \ln e^x=\ln \left( e^{3}\right) ^{2}\Rightarrow \ln e^x=\ln e^6\Rightarrow x=6$
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