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 = 10/n // - 10/n
2/9-(10/n) = 0
2/9-10*n^-1 = 0
-10*n^-1 = -2/9 // : -10
n^-1 = 1/45
-1 < 0
1/(n^1) = 1/45 // * n^1
1 = 1/45*n^1 // : 1/45
45 = n^1
n = 45
n = 45
| (4x^2+4y^2)*dx+8xy*dy=0 | | v-2/-2=-2 | | x-2.5=-6 | | 4w-3=5-6w-8+10 | | -23.(-4)= | | -3x-7=-2x | | 7c-11c=20 | | 2/6=m/9 | | x=-16/27 | | 18.10x=45.25. | | 3(n-6)=6 | | 3946x^2+5551x=-5884 | | 5(x+4)=10-40-7x | | 15000=2.6t+4.9(t*t) | | t-14/-1=-3 | | 8x-65=4x-1 | | 4z-3z+2=17 | | 15=-3x-45 | | -4(x+5)=-20 | | y^2+11=0 | | 27x=-16 | | -3x+x-3=5 | | 4x-y=-25 | | 2x-6=1.2-x | | 5x-10y=8 | | -8r+8(3-2r)=-6r+6 | | 10=5x^5 | | Y-128=-20/11x-0 | | -7+x+2x=5 | | -2m-5+8m=3+6m-8 | | 1/2(2x+2) | | 2.5=(y-86)/8 |