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 - Page 689: 27

Answer

The number is $= -5$

Work Step by Step

Let $x = $ be the unknown number $2x + x = -15$ $3x = -15$ $x = \frac{-15}{3}$ $x = -5$
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