Answer
2
Work Step by Step
$3ab+4ab-5ab$
(Variables are the same, so you can add the first two coefficients)
$7ab-5ab$
(Now subtract the remaining coefficients)
$2ab$
(The simplified expression has a coefficient value of 2).
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 1 - Foundations for Algebra - Common Core Cumulative Standards Review - Selected Response - Page 76: 21
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