Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 1 - Section 1.2 - Angles and Their Relationships - Exercises - Page 48: 23


x=14$^{\circ}$ y=4$^{\circ}$

Work Step by Step

40$^{\circ}$=3x-y+2 y=3x-38 2x+3(3x-38)=40$^{\circ}$ 2x+9x-114=40$^{\circ}$ 11x=154$^{\circ}$ x=14$^{\circ}$ y=3(14$^{\circ}$)-38 y=4$^{\circ}$
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