Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 3 - Equations and Problem Solving - 3.2 - Equations and Problem Solving - Problem Set 3.2: 78

Answer

The answer is below.

Work Step by Step

This means that when you are solving a word problem, you need to create a variable that is equal to what you are solving for. For instance, if you were looking for the number of dollars a person had, you might create an equation and call the number of dollars that person has the variable d.
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