If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
4*x-8 = 0
10-(5*x) = 0
4*x-8 = 0
4*x-8 = 0
4*x-8 = 0 // + 8
4*x = 8 // : 4
x = 8/4
x = 2
10-(5*x) = 0
10-(5*x) = 0
10-5*x = 0
10-5*x = 0 // - 10
-5*x = -10 // : -5
x = -10/(-5)
x = 2
x in (-oo:2) U (2:+oo)
10/(4*x-8)-(15/(10-(5*x))) = 0
10/(4*x-8)-15*(10-5*x)^-1 = 0
10/(4*x-8)-15/(10-5*x) = 0
(10*(10-5*x))/((4*x-8)*(10-5*x))+(-15*(4*x-8))/((4*x-8)*(10-5*x)) = 0
10*(10-5*x)-15*(4*x-8) = 0
220-110*x = 0
(220-110*x)/((4*x-8)*(10-5*x)) = 0
(220-110*x)/((4*x-8)*(10-5*x)) = 0 // * (4*x-8)*(10-5*x)
220-110*x = 0
220-110*x = 0 // - 220
-110*x = -220 // : -110
x = -220/(-110)
x = 2
x in { 2}
x belongs to the empty set
| -35b-21=126 | | 27750.00+200.00x=5000 | | 3x/8+x/3=51/24 | | -35b-3=126 | | 5x^2+27x+18=0 | | -5-x=2x-(4+6) | | 358=56v-6 | | -101=18r-11 | | 5-32+32n=165 | | 3y=20+x | | 15m-35=155 | | 12p-2=-98 | | -4+x-(-5)= | | 4x^2=1-3x | | 2y-42+(-y)=6 | | -8-1x=x-4x | | 3-12x=99 | | (3x)(x+7)=0 | | 1x+3=13 | | -16-20n+1=-155 | | 7x-5y=6 | | -3x+-2x+5= | | -42-42x=-126 | | -42-42x=99 | | log(9)x=log(9)5+log(9)6-log(9)3 | | 5x+7x+5+7x+4=161 | | (3x^2+5x+50)/(x-5) | | 25=2(x-5) | | 3/2*4 | | 6x+8=4x+30 | | 20(x+5)y^2+108(x+5)y-72(x+5)=0 | | 3x+10=5x+6 |