If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
0.2-x = 0
0.2-x = 0
0.2-x = 0
0.2-x = 0 // - 0.2
-x = -0.2 // * -1
x = 0.2
x in (-oo:0.2) U (0.2:+oo)
(2*x)/(0.2-x) = 8 // - 8
(2*x)/(0.2-x)-8 = 0
(2*x)/(0.2-x)+(-8*(0.2-x))/(0.2-x) = 0
2*x-8*(0.2-x) = 0
10*x-1.6 = 0
(10*x-1.6)/(0.2-x) = 0
(10*x-1.6)/(0.2-x) = 0 // * 0.2-x
10*x-1.6 = 0
10*x-1.6 = 0 // + 1.6
10*x = 1.6 // : 10
x = 1.6/10
x = 0.16
x = 0.16
| (x+8)(x+5)=4 | | 8(x+6)-3(2x+9)=2(x+13.5) | | 8h-23=49 | | 9x^2+4+9x^2+4=8+3x | | 8(n-1)=52+4n | | (2x+17)x(4x-4)x(6x+9)= | | (4n-3)(n-3)=0 | | 28.72+.31x=40 | | 115=8x+19 | | 22=5a+7(a-2) | | (x-5)(x-9)=-5 | | 4(3t+1)=t | | 50.24x=500 | | 7y+1=8y-7+2y | | 3(x-5)+2=7 | | 3r-3=4r-7 | | f(x)=2x^2-4x-8 | | (x^2-34x-136)=0 | | 9x-4+3x+8=6x+16 | | x+(x+3)(-3)=-3 | | 88y+88y=400-24y | | x+4=8x+48 | | -4.4-b/5=-4.8 | | m+4=3m | | 3b-11=10 | | 2+8y=9+y | | 4c=5c+3 | | -4w-8=-8(w+3) | | 2(x^2-34x-136)=0 | | 18-4h=16 | | 8b-3=12+5b | | 20+2*b=52 |