How to find out the value of n

a = 180(n - 2)
------------
n

Please, send step to solve this problem

Thanks

Saurabh

n= a/180+2

a=180(n-2)/n
multiply both sides by n
an=180n-360
collect the terms that contain n on the left
an-180n=-360
factor out an n on the left
n(a-180)=-360
divide both sides by a-180
n=-360/(a-180)

so I got a different answer than erik but I admit that I'm half asleep at the moment.