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 - Introduction to Algebraic Expressions - 1.5 Addition of Real Numbers - 1.5 Exercise Set: 85

Answer

12x + 17

Work Step by Step

To find the perimeter, we write it as a sum of the length of each side. Then, combine like terms. 7x + 8 + 5x + 9 = 7x + 5x + 8 + 9 = 12x + 17
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