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 = 7/9 // - 7/9
6/n-(7/9) = 0
6/n-7/9 = 0
6*n^-1 = 7/9 // : 6
n^-1 = 7/54
-1 < 0
1/(n^1) = 7/54 // * n^1
1 = 7/54*n^1 // : 7/54
54/7 = n^1
n = 54/7
n = 54/7
| h+-8=-8 | | x/15=-19 | | -5(x-2)=5 | | -3x(-4x^2-10x+12)= | | -0.5(x)=-4.3 | | 2(x-5)+3(x+7)= | | ((8x^4)-(20x^3))/(4x^2) | | 5x+3-2x-4= | | 4c+2-3c=-1+6 | | 1/4n=1/8n+8 | | 7(3x+4)= | | Y=x^2+4x+2 | | 5/-7x-7 | | (-4x)(8x-5)= | | 3v^2=-v+2 | | 5/-7*-7 | | 1/3(t)=7 | | .83x=.36 | | Ln(x+2)=3 | | h-8=-8 | | (14x^2+13x+12)-(7x^2+20x+4)= | | 2(4-4)= | | 3(5c-1)-2=13c-3 | | (x+7)(2x+1)=0 | | 2t=28 | | x^2+4-60=0 | | 3z^2-28z+49=0 | | 2(x^2-16)=0 | | 26-4=12 | | 1.8(2r-7)+2.3r= | | 4(m-2)=24 | | -4x-3=-6+9 |