Answer
16
Work Step by Step
You are given $\sqrt (3a+1)$=7.Solve for X:
$\sqrt (3a+1)$=7 -square both sides-
3a+1=49
3a=48
a=16
The final solution is a=16
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 10 - Radical Expressions and Equations - 10-4 Solving Radical Equations - Practice and Problem-Solving Exercises - Page 636: 13
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