Precalculus (6th Edition)

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

Chapter 4 - Inverse, Exponential, and Logarithmic Functions - Chapter 4 Test Prep - Review Exercises: 60

Answer

$6$

Work Step by Step

$\ln e^{\ln x}-\ln \left( x-4\right) =\ln 3\Rightarrow \ln x=\ln 3+\ln \left( x-4\right) $ $\Rightarrow \ln x=\ln \left[ 3\left( x-4\right) \right] \Rightarrow x=3\left( x-4\right) \Rightarrow 2x=12\Rightarrow x=6$
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