Answer
$x=10$
Work Step by Step
Use the order of operations (PEMDAS) to solve this problem.
$0.7x+0.4(20)=0.5(x+20)$
$0.7x+8=0.5x+10$
$0.2x=2$
$x=10$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 1 - Equations and Inequalities - Exercise Set 1.2 - Page 119: 93
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