Answer
Identity Property of Addition
Work Step by Step
RECALL:
The Identity Property of Addition states that for any real number $a$, $a + 0 = a$.
With $a=9+p$, the given expression illustrates the Identity Property of Addition.
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 R - Review of Basic Concepts - Chapter R Test Prep - Review Exercises - Page 82: 39
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