Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 6 - Algebra: Equations and Inequalities - 6.1 Algebraic Expressions and Formulas - Exercise Set 6.1: 39

Answer

distributive property, Commutative Property of Addition, Associative Property of Addition, Commutative Property of Addition

Work Step by Step

7+2(x+9) =7+ (2.x + 18) (distributive property) =7+(18 + 2x) (Commutative Property of Addition ) = (7 + 18) + 2x (Associative Property of Addition ) = 25 + 2x = 2x +25 (Commutative Property of Addition )
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