Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 1 - Introduction to Algebraic Expressions - 1.6 Subtraction of Real Numbers - 1.6 Exercise Set: 39

Answer

-15

Work Step by Step

The opposite of a real number $a$ is written $-a$. That is, the opposite of a number is the negative of a number. Therefore, we can place a negative sign in front of a number to find its opposite. $-(15)=-15$
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