Intermediate Algebra (12th Edition)

by Lial, Margaret L.; Hornsby, John; McGinnis, Terry

Published by Pearson

ISBN 10: 0321969359

ISBN 13: 978-0-32196-935-4

Chapter R - Section R.2 - Operations on Real Numbers - R.2 Exercises - Page 20: 40

Answer

Work Step by Step

$-10-6-(-12)+9=-(10+6)-(-12)+9=-(16)-(-12)+9=-16+12+9=-16+(12+9)=-16+21=21-16=5$

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