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: 20

Answer

The solution is 34

Work Step by Step

1.5x+2 -1.2x= 12.2 simplify 1.5x -1.2x 0.3x +2 =12.2 Subtract 2 from both sides 0.3x +2-2 =12.2 -2 0.3x =10.2 Divide by 0.3 both sides $\frac{0.3x}{0.3}$=$\frac{10.2}{0.3}$ x=$\frac{102}{3}$ x=34 The solution is 34 Check 1.5x +2 -1.2x =12.2 Replace x with 34 1.5$\times$34 +2 -1.2$\times$34 =12.2 51 +2 -40,8 =12.2 53,0 - 40.8=12.2 12.2=12.2
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