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: 60

Answer

10 y - 54

Work Step by Step

6 - 5[8 - (2y - 4)] Step 1: Drop parentheses and change the sign of each term in parentheses: −(2y-4) = -2y +4 6-5[8-2y+4] Step 2 Simplify inside brackets: 8+4 =12 6-5[12 -2y] Step 3 Apply the distributive property: 6 - 5.12 +5.2y Step 4: Multiply 6 - 60 + 10y Step 5: Group like terms (6-60) + 10y Step 6: Combine the like terms (6 - 60) = -54 -54 + 10y Step 7 Commutative Property of Addition 10 y - 54
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