Answer
$11$
Work Step by Step
Using order of operations, the given expression, $
8-(2\cdot3-9)
$, evaluates to
\begin{array}{l}
8-(6-9)
\\\\=
8-(-3)
\\\\=
8+3
\\\\=
11
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 1 - Introduction to Algebraic Expressions - 1.8 Exponential Notation and Order of Operations - 1.8 Exercise Set - Page 66: 49
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