Answer
x=9$^{\circ}$
Work Step by Step
Angles 2 and 6 are corresponding angles so they are congruent.
m$\angle$2=m$\angle$6
x$^{2}$-9=x(x-1)
x$^{2}$-9=x$^{2}$-x
-9=-x
x=9
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 2.3 - Proving Lines Parallel - Exercises - Page 101: 27
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