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 - Practice: 1

Answer

The number is 9.

Work Step by Step

"Three times a number"-> 3x "minus" 6 -> - 6 "is the same as" -> = "two times the number" -> 2x "plus 3" -> + 3 The equation is therefore: 3x - 6 = 2x + 3 Subtract 2x from both sides: x - 6 = 3 Add 6 to both sides: x = 9
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