Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Prerequisites - P.1 - Review of Real Numbers and Their Properties - Exercises - Page 13: 60


(a) $30$ (b) $-12$

Work Step by Step

$9-7x$ (a) $9-7(-3)=9+21=30$ (b) $9-7\times3=9-21=-12$
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