Prealgebra (7th Edition)

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

Chapter 3 - Review - Page 205: 61



Work Step by Step

The phrase 'the difference of" shows that this equation will involve subtraction. The answer will be 28. So write $20-(-8) =28$ . Remember that subtracting a negative is effectively adding the absolute value of the term.
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