Answer
$\frac{7}{9}$ and $x\ne-1.$
Work Step by Step
$\frac{x+1}{3}\div\frac{3x+3}{7}=\frac{x+1}{3}\frac{7}{3(x+1)}=\frac{7}{9}$ and $x\ne-1.$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 6 - Section 6.1 - Rational Expressions and Functions; Multiplying and Dividing - Exercise Set - Page 414: 74
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