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)
2/9 = 13/n // - 13/n
2/9-(13/n) = 0
2/9-13*n^-1 = 0
-13*n^-1 = -2/9 // : -13
n^-1 = 2/117
-1 < 0
1/(n^1) = 2/117 // * n^1
1 = 2/117*n^1 // : 2/117
117/2 = n^1
n = 117/2
n = 117/2
| x(x-9)+17=x(x+8) | | (9+w)-6=18+3w | | x/10=8/17 | | 7-3y=12 | | 11a+10=3a+7 | | 15n= | | 5(y-4)=-7y-32 | | 2/9=n/13 | | -(4x-4)-(8x-7)+9=-9(x-7)-(9x+5)+9 | | -11(3x-1)=4(-5) | | 2.8/5.8 | | -4(w+7)=-7w-46 | | 8a+9b=-38 | | 6.4/2.1 | | 2(x+4)+9=2x+3 | | 8/n=6/9 | | 6x-2(5x+2)=16 | | 3x-6*(2x-3)=-2*(x-1)+16 | | 7n-4n-6=15 | | -5(6+6m)-3(-7-4m)=0 | | -191=-2+9(2m-7) | | -4(2y-3)-y=-2(y-3) | | Y-(-2)=0(x+6) | | -7w-46=-4w+7 | | 24=3x+4(-x+3) | | y=3f(x)-5 | | 8-1(x-4)-4x=42 | | V-3/5v=10 | | 3(2-g)= | | 23-n=-12 | | 6(x+1)=2(y-5) | | 2(x-7)-7x=-19 |