Answer
$y=2.0$
Work Step by Step
$0.8y+0.2(y-1)=1.8$
$0.8y+0.2y-0.2=1.8$
$1.0y-0.2=1.8$
Adding $0.2$ to both sides, $1.0y-0.2+0.2=1.8+0.2$
$1.0y=2.0$
Divide both sides by $1.0$: $y=2.0$.
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 6 - Cumulative Review - Page 479: 14
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