Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 7 - Section 7.6 - Radical Equations - Exercise Set: 3

Answer

$x=17$

Work Step by Step

Add 9 on both sides of the equation to obtain: $\sqrt{5x-4} = 9$ Square both sides of the equation to obtain: $5x-4=81$ Add 4 on both sides of the equation to obtain: $5x = 85$ Divide 5 on both sides to obtain: $x =\frac{85}{5} \\x=17$
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