If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( w )
4*w-4 = 0
w-1 = 0
4*w-4 = 0
4*w-4 = 0
4*w-4 = 0 // + 4
4*w = 4 // : 4
w = 4/4
w = 1
w-1 = 0
w-1 = 0
w-1 = 0 // + 1
w = 1
w in (-oo:1) U (1:+oo)
1/(w-1)-(3/(4*w-4)) = 1/(4*w-4) // - 1/(4*w-4)
1/(w-1)-(3/(4*w-4))-(1/(4*w-4)) = 0
1/(w-1)-3*(4*w-4)^-1-(4*w-4)^-1 = 0
1/(w-1)-3/(4*w-4)-1/(4*w-4) = 0
(1*(4*w-4))/((w-1)*(4*w-4))+(-3*(w-1))/((w-1)*(4*w-4))+(-1*(w-1))/((w-1)*(4*w-4)) = 0
1*(4*w-4)-3*(w-1)-1*(w-1) = 0
w-w-1+1 = 0
0 = 0
0/((w-1)*(4*w-4)) = 0
0/((w-1)*(4*w-4)) = 0 // * (w-1)*(4*w-4)
0 = 0
w belongs to the empty set
| 2(3y-4)+6y=4 | | -7=3m+7-m | | 0.04(x+8)=0.02(2x+9)+0.14 | | x+2-36=-44 | | 0.5q=8 | | 5x+4=2(2x+4) | | 6x-8-2x=2(-4+2x) | | 3k-1/45 | | .02(y-7)+.18y=.10y-.4 | | 4(x+7)=-2(4x-6)+6x | | 3(6x-1)+12x-14=-30.2 | | 10x+2=7x+1+3x | | 0=2x^2-240x+5280 | | 16t^2-40t+24=0 | | 2x+4/3-2=4 | | 27=4y-36-3y | | 5x-15y=4 | | 0.89y+2=y-0.2 | | 3+x=(x+1)+2i | | (-3x^4/5)^4 | | 27+3y=4y-36 | | 5x-15y=5 | | 4x=5+7 | | 17y+38=42y+13 | | 1/5(3-x)=3/4(x-3) | | x-2/3-2=x-9/4 | | 4+9i=0 | | -81x^16/625 | | 2x-5-5x-7= | | 2.5=-5.2 | | .02(2t-7)=.04(t-2)-.06 | | y-0.13y= |