Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 2 - Section 2.1 - Introduction to Integers - Exercise Set - Page 105: 71


$|-47|= -(-47)$

Work Step by Step

If $a-b \lt 0$, then $a \lt b;$ If $a-b \gt 0$, then $a \gt b;$ If $a-b = 0$, then $a=b;$ In this problem, $a=|-47|,$ $b=-(-47)=47,$ Since $a-b=|-47|-47=47-47=0,$ Then $a= b,$ Therefore, $|-47|= -(-47)$
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