If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
3*x-6 = 0
x-1 = 0
3*x-6 = 0
3*x-6 = 0
3*x-6 = 0 // + 6
3*x = 6 // : 3
x = 6/3
x = 2
x-1 = 0
x-1 = 0
x-1 = 0 // + 1
x = 1
x in (-oo:1) U (1:2) U (2:+oo)
(x+1)/(x-1) = (3*x)/(3*x-6) // - (3*x)/(3*x-6)
(x+1)/(x-1)-((3*x)/(3*x-6)) = 0
(x+1)/(x-1)-3*x*(3*x-6)^-1 = 0
(x+1)/(x-1)+(-3*x)/(3*x-6) = 0
((x+1)*(3*x-6))/((x-1)*(3*x-6))+(-3*x*(x-1))/((x-1)*(3*x-6)) = 0
(x+1)*(3*x-6)-3*x*(x-1) = 0
-6 = 0
-6/((x-1)*(3*x-6)) = 0
-6/((x-1)*(3*x-6)) = 0 // * (x-1)*(3*x-6)
-6 = 0
x belongs to the empty set
| x+3x-1=5x+2 | | 18x-27=-99 | | 3v^2-25=-10v | | 6t^2+12t-15=0 | | 5p=-7 | | 17-3x=4-x | | 4m^2-6m-3=-5 | | 30.45=6.3(2.5)(h) | | -AP+3Q+2r=-8 | | 2/17/13/34 | | -(5+p)=-23 | | (3-4x)(3-4x)(3-4x)= | | 9x-15+6x+30=x | | 3(4)-3x=6 | | -4.2+6.1=6x-2.2-5x | | 2(x+5)-2=4(x-7) | | -r^2-4r=-5r+48 | | 4x+9-6(x+1)=7x+8 | | -8z+5z=6z-2+4z | | 5v-8+4v=-6+8v | | -15d-24=-3(d+8)-12d | | -4-3x=7-6 | | 4-4x=40 | | 3(d+2)= | | 25n+40=-60 | | 4(x+3)-4=3x-8x+7 | | 20m^2-32=-24m | | 4x+5+-2+3=31 | | x^2=14+5x | | 5+x=11-2x | | 7m+48=-5m-16 | | 0=81x^2-16 |