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)
6/12 = 0.25/x // - 0.25/x
6/12-(0.25/x) = 0
6/12-0.25*x^-1 = 0
-0.25*x^-1 = -1/2 // : -0.25
x^-1 = 2
-1 < 0
1/(x^1) = 2 // * x^1
1 = 2*x^1 // : 2
1/2 = x^1
x = 1/2
x = 1/2
| 108=0.35x | | 12x^2=-9x | | 6/24=0.75/x | | 2/3n-9=7 | | 0.04/0.5=0.12/x | | 12/48=x/56 | | 31-5x=11-7x | | -8+4x=-12+0x | | 5/60=3/x | | [[7]/[2]]y-[[1]/[3]]= eg;[3]y-[[1]/[6]] | | x/160=7/140 | | (5a+30)= | | 6.3x-6+x-1.4= | | 6x-1-2x=3 | | 2x+6=-36-46 | | X-4*3=10 | | x/625=1/5 | | 2y^5x^2/2y^6x | | 30/120=x/12 | | 6x-8/3x-4 | | 5x-7+3x=4(2x+3)-5 | | 4p+17.5p=53.50 | | 4/x=3/12 | | 1+9x=7+x | | 4(p+17.50)=53.50 | | 7A×4/B=2 | | 90-(6x+10)=6(x+9)+x | | 3-2x+12-5x=-1 | | [(8a^8)(98a^-2)/a^4]^1/2 | | 6x+40=13x-4 | | y-3=4(x-7) | | v=3(10-6)(15-6) |