Introductory Algebra for College Students (7th Edition)

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 73: 134

Answer

$-12$

Work Step by Step

By the rule of adding numbers of the same sign, $(-3)+(-3)+(-3)+(-3)=-(3+3+3+3)=-(4\times 3)$ $=-12$
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