Answer
See below
Work Step by Step
$$4^{x+1}=2^{2x+2}\\8^{3x}=2^{9x}\\4^{x+1}=8^{3x}\\2^{2x+2}=2^{9x}\\2x+2=9x\\7x=2\\x=\frac{2}{7}$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 10 Counting Methods and Probability - 10.5 Find Probabilities of Independent and Dependent Events - 10.5 - Mixed Review - Page 723: 57
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