Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 4 - Cumulative Review - Page 252: 4a

Answer

$-5$

Work Step by Step

RECALL: $\\\\a-b=a+(-b)$. Use this rule to have: $\\\\=-7 + [-(-2)] \\\\=-7+2$ $\\\\\\$The numbers being added have opposite signs. $|-7| \gt |2|$ so the answer must be negative. $\\\\$Subtract the respective absolute values keeping in mind that the answer is negative to have: $\\\\-7 + 2=-(|-7| - |2|) \\\\=-(7-2) \\\\=-5$
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