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: 31

Answer

x = -8.13

Work Step by Step

3(x+2.71)=2x Use the distributive property 3x+ 3$\times$2.71 =2x 3x + 8.13 =2x Subtract 8.13 from both sides 3x + 8.13 -8.13 =2x -8.13 3x = 2x - 8.13 Subtract 2x from both sides 3x -2x = 2x - 8.13 -2x x=-8.13 Check Replace x with -8.13 3(x+2.71)=2x 3(-8.13+2.71)=2(-8.13) 3(-5.42) = - 16.26 -16.26=-16.26
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