#### 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 $x$.
$x=7.5/0.1=75$

Published by
Pearson

ISBN 10:
0321671791

ISBN 13:
978-0-32167-179-0

$75$

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