Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 1-2 - Cumulative Review: 8

Answer

$-21n+36$

Work Step by Step

Removing the grouping symbol and then combining like terms, the given expression, $ 3[4n-5(2n-1)]-3(n-7) $, simplifies to \begin{array}{l}\require{cancel} 3[4n-10n+5]-3n+21 \\\\= 3[-6n+5]-3n+21 \\\\= -18n+15-3n+21 \\\\= (-18n-3n)+(15+21) \\\\= -21n+36 .\end{array}
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.