Prealgebra (7th Edition)

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

Chapter 3 - Section 3.2 - Solving Equations: Review of the Addition and Multiplication Properties - Exercise Set - Page 180: 69



Work Step by Step

$23x+8-25x=7-9\rightarrow$ combine like terms $-2x+8=-2\rightarrow$ subtract 8 from each side $-2x+8-8=-2-8\rightarrow$ simplify $-2x=-10\rightarrow$ divide each side by -2 $-2x\div-2=-10\div-2\rightarrow$ simplify $x=5$
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