Algebra: A Combined Approach (4th Edition)

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

Chapter 12 - Review: 27



Work Step by Step

Step 1: $9^{x+1}=243$ Step 2: $(3^{2})^{x+1}=3^{5}$ Step 3: $3^{2x+2}=3^{5}$ Step 4: $2x+2=5$ Step 5: $2x=5-2$ Step 6: $2x=3$ Step 7: $x=\frac{3}{2}$
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