Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 9 - Basic Algebra - 9.8 Using Equations to Solve Application Problems - 9.8 Exercises: 32

Answer

The number is $15$.

Work Step by Step

Let $x =$ the number $2x - 8 = x + 7$ $2x - x = 7 + 8$ $x = 15$
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