Answer
$x=-1$
Work Step by Step
The right side involves a fraction with a numerator of 1.
This means that the exponent of $5$ is negative.
The value of $x$ is $-1$ since
$5^{-1} = \dfrac{1}{5}$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 9 - Section 9.4 - Exponential Growth and Decay functions - Exercise Set - Page 565: 29
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