Answer
$x=15$
Work Step by Step
$2x+10=40$
$2x+10-10=40-10$
$2x=30$
$\dfrac{2x}{2}=\dfrac{30}{2}$
$x=15$
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
Chapter 1 - Linear Functions - 1.1 Solving Linear Equations - 1.1 Exercises - Page 10: 1
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