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)
(0.5*x-10)/(x-4) = (0.5*x+2)/(2*x-8) // - (0.5*x+2)/(2*x-8)
(0.5*x-10)/(x-4)-((0.5*x+2)/(2*x-8)) = 0
(0.5*x-10)/(x-4)+(-1*(0.5*x+2))/(2*x-8) = 0
((0.5*x-10)*(2*x-8))/((x-4)*(2*x-8))+(-1*(0.5*x+2)*(x-4))/((x-4)*(2*x-8)) = 0
(0.5*x-10)*(2*x-8)-1*(0.5*x+2)*(x-4) = 0
0.5*x^2-24*x+88 = 0
0.5*x^2-24*x+88 = 0
0.5*x^2-24*x+88 = 0
DELTA = (-24)^2-(0.5*4*88)
DELTA = 400
DELTA > 0
x = (400^(1/2)+24)/(0.5*2) or x = (24-400^(1/2))/(0.5*2)
x = 44 or x = 4
(x-4)*(x-44) = 0
((x-4)*(x-44))/((x-4)*(2*x-8)) = 0
((x-4)*(x-44))/((x-4)*(2*x-8)) = 0 // * (x-4)*(2*x-8)
(x-4)*(x-44) = 0
( x-4 )
x-4 = 0 // + 4
x = 4
( x-44 )
x-44 = 0 // + 44
x = 44
x in { 4}
x = 44
| x+X+X+X+4+5=28 | | 17=x+12 | | (0.5x+8/7)x=x+18 | | (0.5x+7)/8=5 | | 14.80+15+17.30=x | | -4a-1*8=-10a*3 | | (0.5q+0.5)/(-0.5q+1)=W | | 14.80+15=17.30+x | | x(3-8+2x)+-4-x=48 | | 17.30+x=14.80+15 | | x+x+x+4+5=28 | | (0.15-0.06)/(x)(0.04)+(1-x)(0.02)=(0.14-0.06)/(x)(0.02)+(1-x)(0.08) | | 6(-7/3) | | 2/5m=-32 | | (0,5)m=2/3 | | x+x+4+5=28 | | 2x+6y=90 | | 11=8x+7/3 | | 3x-8+2x+-4x=48 | | (0)=-1/3x+2 | | 6-6x=10-8 | | (0)=-1/3(0) | | 4/9m=-24 | | 8y^2+3y-5=0 | | (-x/x-4)+9=6x/x-4 | | (-x/6)=9 | | (-x/4)+9=5 | | (-x/2)=10 | | -tan(x)=tan(-x) | | (-x/10)+(5x-6)/8=2x-7 | | (-x-3)/5=(y-7)/2 | | (-x-11)/3=21 |