Answer
7
Work Step by Step
Solving the equation for x, we find:
$$\left(\sqrt{4x+6}\right)^2=\left(\sqrt{7x-15}\right)^2\\ 4x+6=7x-15 \\ x=7$$
Checking, we find that this solution is valid.
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 11 Data Analysis and Statistics - 11.2 Apply Transformations to Data - 11.2 Exercises - Mixed Review - Page 755: 28
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