Answer
$\{0,0.7 \}$
Work Step by Step
Step 1. Graph $f(x)=6^{-x}+x-1$ as shown in the figure.
Step 2. Locate the x-intercepts at $x=0$ and $x\approx0.7$ which gives the solution set $\{0,0.7 \}$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 4 - Inverse, Exponential, and Logarithmic Functions - 4.2 Exponential Functions - 4.2 Exercises - Page 434: 112
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