Answer
y=20 degrees, x=100 degrees, and angle 5=60 degrees
Work Step by Step
The attached photo demonstrates the algebraic process of solving the system of equations.
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 2 - Section 2.4 - The Angles of a Triangle - Exercises - Page 106: 29
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