Basic College Mathematics (9th Edition)

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

Chapter 9 - Basic Algebra - Review Exercises: 106

Answer

$x=25$

Work Step by Step

We are told when a number is subtracted from five times the number, the result is 100. We will use x as the variable. Therefore, the difference between 5x and x equals 100. $5x-x=100$ Combine like terms on the left side. $5x-x=(5-1)x=4x=100$ Divide both sides by 4. $x=25$
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