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)
6/n = (6/7)/45 // - (6/7)/45
6/n-((6/7)/45) = 0
6/n-2/105 = 0
6*n^-1 = 2/105 // : 6
n^-1 = 1/315
-1 < 0
1/(n^1) = 1/315 // * n^1
1 = 1/315*n^1 // : 1/315
315 = n^1
n = 315
n = 315
| 8m^2+5=0 | | 4x-7=-3x+9 | | 2v-48=-8(v-4) | | 5(A+2)-4=-4+10A+7 | | 2(2y-1)=3(y+2) | | -7/10+2/10 | | (1/3*3/4)/(7/8) | | 2x^2-5x-11=1 | | (1/3*3/4)/7/8 | | (3/7)/(7/3)*5/6 | | 30x/2 | | n^2+14n+40=0 | | (3/7/7/3)*5/6 | | (8x+3)(x+4)=0 | | (4v+3)(4-v)=0 | | (z+2)(z+4)=0 | | 10+4p=50-4p | | 7n^2z^7/-5n^7z^2 | | 4e-7(e+1)=-e+11 | | (7-u)(3u-2)=0 | | 7/8/5/16 | | 6(4x+5)=3(x+8)+5 | | -4z(z+1)(z-8)=0 | | f(t)=2t-3 | | log(7x+7)=1 | | ln(6)+ln(x-4)=ln(x) | | M-2(3m+1)+5=-5m+3 | | .05(600)=n | | -8y^3/2y | | (2-w)(5w+6)=0 | | 4x-8=-30 | | 5(x+3-2x)=4(x-9) |