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)
1/n-4 = 0
1*n^-1 = 4 // : 1
n^-1 = 4
-1 < 0
1/(n^1) = 4 // * n^1
1 = 4*n^1 // : 4
1/4 = n^1
n = 1/4
n = 1/4
| 4x+9-5x=12 | | 4(q-5)=6 | | 3.123=9.369*1/3 | | 33=2(u+4)-7u | | 3/4-3.16 | | 3t+4-6t=25 | | -2(-5x-4)=-4x-174 | | 2x+5+4-6x=-7 | | 4t-3=-12 | | 2n^2+11n-13=0 | | 4(5p+6)+p=129 | | 2m+5+4-6x=-7 | | (3x+1)-(3x-7)-9x= | | X+20=9x-.4 | | 8/10r*8r^3-80r^2/8 | | 6a+4+a+8+2a= | | 2y+11=-13 | | 3k-6k+8k-5k+2= | | 8r^3-80r^2/8 | | 5/2y5x-10 | | 6a+4-a+8+2a= | | 10p-3=12p-7 | | 5h+6+8h-3h=67 | | 2.2+-3=21.2 | | 2l+w=180 | | 4f=200 | | 3/4(x-7)=9 | | 12x-180=120 | | 2.01k=0.04 | | -4(4y-7)+2(3y+6)= | | -6n(-1+7n)-10n(4+3n)+-6(2-7n)-2(-3n-2)= | | 8/10r |