Elementary Algebra

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

Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.1 - Numerical and Algebraic Expressions - Problem Set 1.1 - Page 8: 68

Answer

The answer is below.

Work Step by Step

While numerical expressions only contain numbers (such as 1 and 5), algebraic expressions may also contain variables. A variable is something that is not a given value and can change; for example, x is a variable.
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