If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( n )
n = 0
n = 0
n = 0
n in (-oo:0) U (0:+oo)
(180*(n-2))/n = 156 // - 156
(180*(n-2))/n-156 = 0
(180*(n-2))/n+(-156*n)/n = 0
180*(n-2)-156*n = 0
24*n-360 = 0
(24*n-360)/n = 0
(24*n-360)/n = 0 // * n
24*n-360 = 0
24*n-360 = 0 // + 360
24*n = 360 // : 24
n = 360/24
n = 15
n = 15
| 4r=232 | | -4+9(x-2)=15x+4-6x | | 8.4a+14=114.8 | | 2x+3x=62 | | 10n-2=2n+34 | | -7+7x-6= | | -c+7x-6= | | 35x=225-10x | | 4sin^2(x)+4cos^2(x)=0 | | 8x=5+2(3+4x) | | 14=17-17 | | 15y^2+5y=0 | | -28=-14w | | 14=11-17 | | 6w-6w+6w+9w= | | 8-7x-4=-28+4x-12 | | 1-3t+1=8 | | 14=14-17 | | -5p+1-5+1= | | -4(5x+7)+6= | | -7y+4-7y+1= | | 5(15.6+-0.6y)+3y=78 | | b+2+2-7b= | | 13+3=16 | | 3-2a+3a+5a= | | 45=-16t^2+45+6 | | 12p=-3+15 | | -9v+7v+3v-9v= | | 2-2t+4=14 | | 1000+5x=10 | | 5x+3y=78 | | 12n+3=n+14 |