Answer
Subtraction property of equality
Work Step by Step
Subtracting 5 to each side of the equation
x + 5 = 12
x + 5 - 5 = 12 - 5
x = 7
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
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 54: 3
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