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)
1/x-(2*(1/x+1))+1 = 0
1/x-2*(1/x+1)+1 = 0
1/x-2*(x^-1+1)+1 = 0
(-2*x*(x^-1+1))/x+1/x+(1*x)/x = 0
1*x-2*x*(x^-1+1)+1 = 0
x-2*x-1 = 0
-x-1 = 0
(-x-1)/x = 0
(-x-1)/x = 0 // * x
-x-1 = 0
-x-1 = 0 // + 1
-x = 1 // * -1
x = -1
x = -1
| (1/x+1)-(5/x-4)=21/4 | | (1/x+1)+3=7/x+1 | | (1/x+1)+3=(7/x+1) | | (1/x)=4 | | (1/x)=(3x/x-4) | | (1/x)=(1/5)+(3/2x) | | x-20=50 | | 4--5=g | | (1/x)-4=0 | | 2x/3=4 | | (1/x)-(1/x-16)=1/4 | | (1/x)-(1/3x)=(1/2x)+(1/6x) | | (1/x)+x=4 | | (1/x)+x=2 | | (1/2)x+5=11 | | -5-3=g | | (1/x)+3=(7/2) | | (1/x)+1/(x+4)=1/3 | | (2x-8*34-2)=0 | | (1/x)+1/(x+2)=(1/5) | | (1/x)+(2/x-5)=0 | | 3(x-1)/2-5=4-2x/3 | | (1/x)+(2/x-1)=3 | | (1/x)+(2/x+1)=(5x-1)/(x+1) | | (1/x)+(1/x+4)=1/5 | | (1/x)+(1/x+4)-(1/5)=0 | | 6x^2-18x+6=0 | | -7/8-1/2x=3/4 | | (1/x)+(1/x+2)=(1/7) | | (1/X)+(1/X+11)=(21/11X+33) | | (1/x)+(1/5)=2 | | (1/x)+(1/2x)=(1/13) |