Answer
False
Work Step by Step
We simplify the expression:
$14+7+(-1) = 21 \\\\ 20=21$
This is not true, so the equation is false.
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 1 - Foundations for Algebra - 1-8 An Introduction to Equations - Practice and Problem-Solving Exercises - Page 56: 14
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