Algebra 1: Common Core (15th Edition)

by Charles, Randall I.

Published by Prentice Hall

ISBN 10: 0133281140

ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-9 Patterns, Equations, and Graphs - Practice and Problem-Solving Exercises - Page 66: 41

Answer

20 is a solution to this equality.

Work Step by Step

We follow the instructions and plug 20 in for a. This gives us the following: 80=4(20) 80=80 80 does equal 80, so 20 is a solution to this equality.

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