Answer
x=3
Work Step by Step
MN=.5(AB+DC)
5x+3=.5(7x+5+4x-2)
5x+3=5.5x+1.5
.5x=1.5
x=3
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 4 - Section 4.4 - The Trapezoid - Exercises - Page 201: 14
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