Answer
$x=-\dfrac{1}{3}$
Work Step by Step
Using properties of equality, then,
\begin{array}{l}
3x+1=0\\
3x+1-1=0-1\\
3x=-1\\
\dfrac{1}{3}\cdot3x=-1\cdot\dfrac{1}{3}\\\\
x=-\dfrac{1}{3}
.\end{array}
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Section 5.7 - Factoring by Special Products - Exercise Set - Page 310: 69
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