Answer
$\frac{3}{10}$
Work Step by Step
$\frac{7}{10}$+(-$\frac{2}{5}$)
$\frac{7}{10}$-($\frac{2\times2}{5\times2}$)
$\frac{7}{10}$-($\frac{4}{10}$)=$\frac{3}{10}$
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 1.5 - Addition of Real Numbers - Exercise Set - Page 63: 32
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