Answer
y = -12
Work Step by Step
We multiply both sides by 3:
$-y + 3\times 2 = 3\times 6$
$-y +6 = 18$
We add $y$ to both sides and in the meantime we subtract 18.
$6-18 = y = -12$
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
Appendix A - A.2 - Formulas and Equations - Exercises - Page 546: 23
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