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)
3/x = 17/39 // - 17/39
3/x-(17/39) = 0
3/x-17/39 = 0
3*x^-1 = 17/39 // : 3
x^-1 = 17/117
-1 < 0
1/(x^1) = 17/117 // * x^1
1 = 17/117*x^1 // : 17/117
117/17 = x^1
x = 117/17
x = 117/17
| x-240-6= | | -4x^2-1=-4x | | -6(2t+3)=-66 | | y=-16t^2+212t+30 | | 2p^2+2p+7=0 | | 12A+4=2 | | 4y+2=2y#=6 | | 3(f-1)=-18 | | 3x^3-16x^2+6x+12=0 | | 7p-2p=10 | | 11X^2+3X-5=8 | | 4y-2p+5p= | | (X-4)/(4-x)=0 | | (-6)-3(2k+4)=18 | | 10(s-10)=-189 | | -9x+201=15 | | 11x+15=4x+99 | | 11x(6x-11)=1+4x | | .125x=1000 | | 7n^2+8n-6=0 | | 1x+25=42 | | g=4g | | 9x-12=3x+18 | | 10j-8j=14 | | x+(x+5)+(x-7)=52 | | v=4u-1 | | 5n^2-8n-22=0 | | 20x-3=30x+5 | | -7p-5=-7-6p | | V^2-10=-4 | | 0=4/5a | | x+3y+2z=6 |