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.
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
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