If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
0.5/x <= 0
x = 0
0.5/x <= 0
0.5/x <= 0
0.5*x^-1 <= 0
0.5*x^-1 <= 0 // : 0.5
x^-1 <= 0/0.5
x^-1 <= 0
1/(x^1) <= 0
x <> 0
1/(x^1) <= 0 // * x^2
(x^2)/(x^1) <= 0
x^1 <= 0
x <= 0
x in (-oo:0)
x = 0
x = 0
x in (0:+oo)
1.0039 = ln(0.5/x) // - ln(0.5/x)
1.0039-ln(0.5/x) = 0
1.0039-ln(0.5/x) = 0 // - 1.0039
-ln(0.5/x) = -1.0039
-ln(0.5/x) = -1.0039 // * -1
ln(0.5/x) = ln(e^1.0039)
0.5/x = e^1.0039
0.5/x-e^1.0039 = 0
0.5*x^-1 = e^1.0039 // : 0.5
x^-1 = 2*e^1.0039
-1 < 0
1/(x^1) = 2*e^1.0039 // * x^1
1 = 2*e^1.0039*x^1 // : 2*e^1.0039
1/(2*e^1.0039) = x^1
x = 1/(2*e^1.0039)
x = 1/(2*e^1.0039)
| -2(5t-2)+8t=3t-3 | | 5s^2-18s+16=0 | | 22+(-11)+20+(-23)= | | C=1/2jw | | ln(x+8)-ln(13)=ln(18) | | 12-(-4)-3+11= | | 19f^2+10f-9=0 | | 6r^2-9r+2=0 | | 3e^2+20e-32=0 | | x/-5-1-(-8) | | 2(x-6)(x-9)+2x(x-6)+2x(x-9)=1134 | | 36-12x/4x-12 | | 9x+15-8x=-7-13 | | x^3-6x^2+4=0 | | -17x=493 | | 7d^2+d-8=0 | | (3x^2/4y)*(2y^2/24x^3) | | 1/4x-5/8x=15-24 | | x/3+6=5x-2 | | 0.75=20*log(x) | | 12-(-5)-3+13= | | 23c^2+56c+20=0 | | -5/8x=-15/32 | | 13b^2+58b+24=0 | | 9x+11x-6=0 | | -7/2 | | 5x^2+16x-8=0 | | 14-(-4)-3+13= | | 9+3u=81-15u | | 11a^2+39a+18=0 | | 9x+3=9-bracket(4x-5) | | 5/6t=-8/9 |