Answer
$x=30$
Work Step by Step
$0.4x-9.3=2.7$
$0.4x-9.3+9.3=2.7+9.3$
$0.4x=12$
$\frac{2}{5}x=\frac{12}{1}$
$\frac{2}{5}x\times\frac{5}{2}=\frac{12}{1}\times\frac{5}{2}$
$x=\frac{60}{2}$
$x=30$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 9 - Cumulative Review - Page 694: 14
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