Answer
$\frac{4}{7}$
Work Step by Step
$\frac{1}{7}$-(-$\frac{3}{7}$)=$\frac{1}{7}$+$\frac{3}{7}$=$\frac{1+3}{7}$=$\frac{4}{7}$
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 1 - Section 1.6 - Subtraction of Real Numbers - Exercise Set - Page 71: 30
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