Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 12 - Review: 99

Answer

{$-2$}

Work Step by Step

Step 1: $3^{x}=\frac{1}{9}$ Step 2: $3^{x}=9^{-1}$ Step 3: $3^{x}=(3^{2})^{-1}$ Step 4: $3^{x}=3^{-2}$ Step 5: $x=-2$ Therefore, the solution set is {$-2$}.
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