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)
(2*x-6)/x = (x-2)/4 // - (x-2)/4
(2*x-6)/x-((x-2)/4) = 0
(2*x-6)/x+(-1*(x-2))/4 = 0
(4*(2*x-6))/(4*x)+(-1*x*(x-2))/(4*x) = 0
4*(2*x-6)-1*x*(x-2) = 0
10*x-x^2-24 = 0
10*x-x^2-24 = 0
10*x-x^2-24 = 0
DELTA = 10^2-(-24*(-1)*4)
DELTA = 4
DELTA > 0
x = (4^(1/2)-10)/(-1*2) or x = (-4^(1/2)-10)/(-1*2)
x = 4 or x = 6
(x-4)*(x-6) = 0
((x-4)*(x-6))/(4*x) = 0
((x-4)*(x-6))/(4*x) = 0 // * 4*x
(x-4)*(x-6) = 0
( x-4 )
x-4 = 0 // + 4
x = 4
( x-6 )
x-6 = 0 // + 6
x = 6
x in { 4, 6 }
| 9-3r=5 | | (-8)*(-10)=-8*z/-8 | | 3/10x1/5=4/5 | | 5r^2-17r+14=0 | | 0.7x-1.7=2.1x+1.9 | | -5=-2/3x+3 | | 6=3w+9 | | 15+3s+2s=120 | | 28-7x=40-3x | | 43=-5-8x | | 1/4*(x+3)=7x-9(1-x)-6 | | 5n-5=7+139 | | 10+4(a-3)=10-2a | | 35c+18+9=405 | | 405-(18c+9)=35 | | 56/66 | | 37.76=5s+3.71 | | 0.4x-1.6=1.5x+2.5 | | -5x+3(-3x-10)=-142 | | 8x+4-7x=13 | | 3x+15-9=(x+2) | | 5n-5=7+129 | | -2(x+5)+3=6(x+5)+5 | | -x-5y=6 | | 9r^2+66r-135=0 | | 3(x+2)=6x-36 | | 8x+10=2x+11 | | 15-19=4z | | 0.80x+0.05(4-x)=0.10(17) | | 10x^2+6-4= | | a-4b= | | 2x^3+3x^2-3x-8=0 |