Answer
n=8
Work Step by Step
We can multiply by $n$ assuming that $n\ne 0$ because it's the denominator of a fraction:
$360 + 135n = 180n$
We subtract $135n$ from both sides:
$ 360 = 180n - 135n = 45n$
We divide by 45:
$360\div 45 = 8 = n$
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
Appendix A - A.2 - Formulas and Equations - Exercises - Page 540: 31
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