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)
27/n = 90/60 // - 90/60
27/n-(90/60) = 0
27/n-3/2 = 0
27*n^-1 = 3/2 // : 27
n^-1 = 1/18
-1 < 0
1/(n^1) = 1/18 // * n^1
1 = 1/18*n^1 // : 1/18
18 = n^1
n = 18
n = 18
| (2-u)(4u-1)=0 | | (36)=318 | | 26-4x=4x | | 4x+7=28-3x | | 40/16=24/x | | 4x+7=28-3 | | 5x-2y=3y-10 | | 7t=u+30 | | x-13=2x-1 | | 3s-7=-1 | | 6/x=4/48 | | 4(2x-3)=7(x+3) | | x/30=6 | | 15=a/3 | | x/25=20/4 | | 15=9/3 | | 6.5x-10=3x+20 | | 500*12/7 | | -8.4x=0.4872 | | 1=X/-4 | | 9/3=n/5 | | 15/5=n/3 | | A=Byt+C | | 500t=150(t+4) | | 16/7=36/z | | (-3/4)x=36 | | 2x+26=3y | | 27/n=90/70 | | 5z+4=5(z+2)-6 | | 2z+1/7=3z+3/7 | | y/4.8=20/16 | | 2x+5=4x+25 |