If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
0.1-x = 0
0.1-x = 0
0.1-x = 0
0.1-x = 0 // - 0.1
-x = -0.1 // * -1
x = 0.1
x in (-oo:0.1) U (0.1:+oo)
2.9*10^-11 = (x^2)/(0.1-x) // - (x^2)/(0.1-x)
2.9*10^-11-((x^2)/(0.1-x)) = 0
(-1*x^2)/(0.1-x)+0 = 0
(-1*x^2)/(0.1-x)+(0*(0.1-x))/(0.1-x) = 0
0*(0.1-x)-1*x^2 = 0
-x^2 = 0
(-x^2)/(0.1-x) = 0
(-x^2)/(0.1-x) = 0 // * 0.1-x
-x^2 = 0
-1*x^2 = 0 // : -1
x^2 = 0
x = 0
x = 0
| 2=-1/2 | | Solved=jm | | -4m+5m^2= | | r+s=-3 | | 3y-10=2y+7 | | y^2dx+x^2dy=0 | | 3+55x=44x+5 | | 3+55x=44 | | (4x-1)x(5x+2)=0 | | 11x-18=6x+6 | | 7x-15=x+4 | | 2x^2+2y=0 | | 3cos+2=0 | | 8x-17+31+9x-69-18x=-39 | | 2x+200=12x-10 | | 12=1/5y-2 | | 10z-9z=-15 | | 2x^2+14x-20=0 | | 2+6x=-23+6 | | 2(x+y)=2x+y | | -3x-2x-4x=1 | | 8x-10=2x+3 | | 15/6x14/40x24/21 | | 2x-4x+8=6 | | 8+5=-3 | | p+5=-7 | | 4.4=10 | | 7-y=19 | | 4-1/4y=5 | | 4+x+x=20 | | 5x-3/8=x | | 4+x+x=30 |