If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
0.0081 = 1/x // - 1/x
0.0081-(1/x) = 0
0.0081-x^-1 = 0
-1*x^-1 = -0.0081 // : -1
x^-1 = 0.0081
-1 < 0
1/(x^1) = 0.0081 // * x^1
1 = 0.0081*x^1 // : 0.0081
123.45679012 = x^1
x = 123.45679012
x = 123.45679012
| x-9/16=-7/8 | | 5.88*10^3/5.18*10^8 | | y+5y=6y | | -6=-8/u | | 5x^2(x-8)-7(x-8)= | | (23/20)x=46 | | 23x/20=46 | | 3(z+9)=12 | | -35x^7-5x^6=0 | | Log(3x+4)=-0.8 | | 3+6y-10=whatsy | | 3x+15x^2+18x= | | 5x+25y=-10 | | (-4+3x)-(-2x+11)=0 | | 1/t(t-1)-1/t=3/t-1 | | -12+n= | | 8x-3=9+5x | | t*t(t-1)= | | x^2+4x+4=9y^2 | | 2(-2x+3)-5(2x)=3(2x+3) | | Z^2-2x+12=5x+2 | | (6xz)(5zx)= | | x*2-1=41 | | 6x^2-5c-46=5x^2-10 | | 1x+2y=400 | | 2x+24=54 | | x+1.8=6.1 | | 24/4=72x | | 24/4=72 | | 16=-5 | | a^2-139+36=0 | | -35=42t |