Answer
$\text{identity}$
Work Step by Step
If any real number satisfies an equation, the equation is called an identity.
Thus, the missing expression in the given statement is:
$\text{identity}$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 1 - Equations and Inequalities - 1.1 Linear Equations - 1.1 Exercises - Page 92: 4
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