Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 1 - Section 1.3 - Introduction to Geometric Proof - Exercises - Page 56: 39

Answer

1, Given 2. Addition Property of Equality 3. Given 4. Substitution Property of Equality

Work Step by Step

Statement 1 is given in the problem. Statement 2 can be reached by adding c to both sides of the equation using the Addition Property of Equality. Statement 3 is given in the problem. Statement 4 can be reached by using the Substitution Property of Equality to replace "c" in statement 2 with "d".
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