Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 5 - Section 5.6 - Solving Equations Containing Decimals - Exercise Set: 28

Answer

y = -1.4

Work Step by Step

9y -6.9 =6y -11.1 9y -6.9 -6y=6y -11.1 -6y 3y -6.9 =-11.1 3y -6.9+6.9 =-11.1 + 6.9 3y=-4.2 $\frac{3y}{3}$=$\frac{-4.2}{3}$ y= -1.4 Check Replace y with -1.4 9y -6.9 =6y -11.1 9(-1.4) -6.9 =6(-1.4) -11.1 -12.6 -6.9=-8.4 -11.1 -19.5=-19.5
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