Answer
23
Work Step by Step
Step 1 : Apply the exponents : $2^{3}$ = 2 * 2*2 = 8
6 – (-9) + 8
Step 2: separate a negative number from a minus sign 6 – (-9) = 15
Now add 15 + 8 =23
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 9 - Basic Algebra - 9.4 Order of Operations - 9.4 Exercises - Page 652: 16
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