Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 1 - Section 1.5 - Introduction to Geometric Proof - Exercises: 2


Substitution property of equality

Work Step by Step

x + x = 2x Because they are equal, 2x can replace x + x. x + x = 12 2x = 12
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