Answer
16.4
Work Step by Step
A key rule to remember is that subtracting a negative is the same as addition. Thus, we find:
$8.5-(-7.9)=8.5+7.9=16.4$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 2 - Solving Equations - Get Ready! - Page 77: 8
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