Answer
$10x+5$
Work Step by Step
By combining the like terms, the given expression, $
5x-4+7x-2x+9
,$ simplifies to
\begin{array}{l}\require{cancel}
(5x+7x-2x)+(-4+9)
\\\\=
10x+5
\end{array}
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.5 - Use of Properties - Problem Set 1.5 - Page 33: 43
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