Algebra: A Combined Approach (4th Edition)

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

Chapter 2 - Section 2.4 - An Introduction to Problem Solving - Exercise Set - Page 131: 2

Answer

3x - 1 = 2x; x - 1

Work Step by Step

"three times a number" translates to 3x. "The difference of three times a number and 1" translates to 3x - 1. "twice the number" translates to 2x. Therefore, the expression is: 3x - 1 = 2x Solve for x: x - 1 = 0 x = 1
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