#### Answer

the solution -1

#### Work Step by Step

$5^{x}$=$\frac{1}{5}$
$5^{x}$=$5^{-1}$
x=-1
Check the solution -1
Let x=-1
$5^{x}$=$\frac{1}{5}$
$5^{-1}$=$\frac{1}{5}$
$\frac{1}{5}$=$\frac{1}{5}$

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

the solution -1

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