Answer
x=7
Work Step by Step
Using the division property of equality you can divide both sides of the equation by 3 to reach this answer.
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 1 - Section 1.5 - Introduction to Geometric Proof - Exercises - Page 44: 18
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