Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 2 - Real Numbers - Chapters 1-2 Cumulative Review Problem Set: 36

Answer

$-2n+6$

Work Step by Step

After using the distributive property, we first group like terms to ease simplification. We will then combine like terms to simplify the expression: $-(n-1)+2(n-2)-3(n-3)$ =$-n+1+2n-4-3n+9$ =$-n+2n-3n+1-4+9$ =$(-n+2n-3n)+(1-4+9)$ =$(-2n)+(6)$ =$-2n+6$
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