#### 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

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Published by
Prentice Hall

ISBN 10:
0133281140

ISBN 13:
978-0-13328-114-9

16

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