Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Review Exercises - Page 108: 6


$$\frac{x}{5}-2 = 18 $$

Work Step by Step

First identify the task, which is to express "the quotient of a number and five, decreased by two, is 18" as an equation. We are told to assume the number is "x". A method to solving this problem is to divide the given statement into sub parts and then convert these into an equation. The quotient of a number and 5 can be expressed as "$\frac{x}{5}$". The quotient is decreased by two can be expressed as "$\frac{x}{5} -2 $". The solution is given as 18 can be written "$=18$". By putting these together, the answer is $\frac{x}{5}-2 = 18 $.
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