Answer
$75$
Work Step by Step
Bring x to one side and numbers without a variable to another.
$0.2x-0.1x=7+0.5$
Simplify by adding or subtracting.
$0.1x=7.5$
Solve for $x$.
$x=7.5/0.1=75$
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter 1 - Section 1.1 - Linear Equations - 1.1 Exercises - Page 84: 21
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