Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.2 - Operations with Real Numbers and Simplifying Algebraic Expressions - Exercise Set - Page 27: 40

Answer

$-20$

Work Step by Step

RECALL: $a-(-b)=a+b$ Thus, $-30-(-10) \\= -30+10 \\=-(30-10) \\=-20$
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