Answer
-30
Work Step by Step
$-3[5+2(-4+9)]+15$
$=-3[5+2(5)]+15$
$=-3[5+10]+15$
$=-3[15]+15$
$=-45+15$
$=-30$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 2 - Section 2.5 - Order of Operations - Exercise Set - Page 139: 59
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