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)
6/19 = 18/x // - 18/x
6/19-(18/x) = 0
6/19-18*x^-1 = 0
-18*x^-1 = -6/19 // : -18
x^-1 = 1/57
-1 < 0
1/(x^1) = 1/57 // * x^1
1 = 1/57*x^1 // : 1/57
57 = x^1
x = 57
x = 57
| (2x-3)(4x-1)=5(2x-3) | | 4x^2-5x-48=0 | | h=-16t^2+16t | | 7x-8y=36 | | 2x+2+x+8=5x | | 8a-8=16+6a | | (2y-2)=(y+3) | | X^2+9y^2-2x-36y+28=0 | | 2a+8=-34 | | 13-4*=1-x | | 8-6k^2=334 | | 4x-2=8-16x | | (4x+6)+(5x+10)+(11x-2)=180 | | 7-3/2 | | 3.4d=26.86 | | 3-x+2=6 | | n+-34=43 | | 0=x^2+11x+10 | | 2Y+4Y-8=5Y+28 | | 56+n=-65 | | -28+n=-30 | | 3b-9=18 | | -16+n=16 | | x+2x+3+4=5x+6x+15 | | (2x-3)-(4x+1)=0 | | n+-29=17 | | 5000+5x=46 | | 42+n=38 | | 27+n=-18 | | 3(x+2y)=9 | | 18yx=-23 | | (4x+30)+(5x+18)+(2x)=180 |