Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 1 - Section 1.7 - Properties of Real Numbers - Exercise Set - Page 70: 28

Answer

$r$

Work Step by Step

$\dfrac{2}{7}*(\dfrac{7}{2}*r)=(\dfrac{2*7}{7*2})*r=\dfrac{14}{14}*r=r$
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