If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
2*x-8 = 0
x-4 = 0
2*x-8 = 0
2*x-8 = 0
2*x-8 = 0 // + 8
2*x = 8 // : 2
x = 8/2
x = 4
x-4 = 0
x-4 = 0
x-4 = 0 // + 4
x = 4
x in (-oo:4) U (4:+oo)
1/(2*x-8)+1/(x-4) = 0
(1*(x-4))/((2*x-8)*(x-4))+(1*(2*x-8))/((2*x-8)*(x-4)) = 0
1*(x-4)+1*(2*x-8) = 0
3*x-12 = 0
(3*x-12)/((2*x-8)*(x-4)) = 0
(3*x-12)/((2*x-8)*(x-4)) = 0 // * (2*x-8)*(x-4)
3*x-12 = 0
3*x-12 = 0 // + 12
3*x = 12 // : 3
x = 12/3
x = 4
x in { 4}
x belongs to the empty set
| 3/2(x-4) | | 8m+20=3m-5 | | -t^2+13t=0 | | 8m+20=5w-6 | | 7d-3=4d+9 | | 4x^3+4x-1=0 | | t^2-36=0 | | 3x-5=9y-13 | | 9y-13=3x-5 | | 2/-3 | | x+5=2y+15 | | 2x+2y=-30 | | 4x+1/3=12x-3/7 | | 10-i+3=20i-176 | | 2x+8=x-10 | | (g-8)-3(g-1)=0 | | 2x+19=87 | | (4x+1)/3=(12x-3)/7 | | (5x^2-3x-8)= | | X^2-24x+144=30 | | x-x/5=30 | | (x^2-3x+2)= | | 108=4(6r-3) | | 8(a+5)=4(a+10) | | 11(n-2)=-10(n+10) | | 3w+2w+4=6 | | 2.5/4=x/6 | | 11(n-2)=10(n+10) | | 2.5/8=x/6 | | 4+4/3=7 | | -3x+5(x+2)= | | y=8.5-0.50x |