Answer
$-11$
Work Step by Step
Step 1: The expression to be simplified is $7-2(4+5)$.
Step 2: Performing the operations in the parenthesis first: $7-2(9)$.
Step 3: The expression becomes $7-18$.
Step 4: $7-18=-11$
Intermediate Algebra: Connecting Concepts through Application
by Clark, Mark; Anfinson, Cynthia
Published by
Brooks Cole
ISBN 10:
0-53449-636-9
ISBN 13:
978-0-53449-636-4
Appendix A - Basic Algebra Review - A Exercises - Page A-15: 55
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