If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
0.25-x = 0
0.25-x = 0
0.25-x = 0
0.25-x = 0 // - 0.25
-x = -0.25 // * -1
x = 0.25
x in (-oo:0.25) U (0.25:+oo)
6 = (2*x)/(0.25-x) // - (2*x)/(0.25-x)
6-((2*x)/(0.25-x)) = 0
6-2*x*(0.25-x)^-1 = 0
(-2*x)/(0.25-x)+6 = 0
(-2*x)/(0.25-x)+(6*(0.25-x))/(0.25-x) = 0
6*(0.25-x)-2*x = 0
1.5-8*x = 0
(1.5-8*x)/(0.25-x) = 0
(1.5-8*x)/(0.25-x) = 0 // * 0.25-x
1.5-8*x = 0
1.5-8*x = 0 // - 1.5
-8*x = -1.5 // : -8
x = -1.5/(-8)
x = 0.1875
x = 0.1875
| D^2+5d-1=0 | | 6y-4=14+11y | | 38=2w+2(12) | | 3x^3y-15x^2y+18xy= | | Y^2=4y+32 | | (5/4x)-(x-2/3)=x-1 | | solvec=ab+dforb | | 4p+5q=57 | | 3y-2y+4=2u | | P(x)=-x^2+90x+52 | | 8x+2-3(x+1)=9x+2 | | 4/5x5= | | x=200-2p | | 7m-20=70 | | 3z+i=2iz | | y=3x^2-13x-12 | | [2x-1]/3=5 | | 4.25/5.2=y/6.16 | | -8y^13/48y^5 | | 8x^3w^2-2xw^4/2xw^2 | | X^2-10+16= | | 2/3x=1,950,000 | | 0.08x+0.09(3530+x)=3530 | | 0.08x+317.7+0.09x=3530 | | 4(w+3)=-2w-12 | | m-(-1/6)=-1/6 | | m-(-5/14)=-5/14 | | 5t^2-2t-32=h | | y*y+6=y*y-30 | | 16x-1=8x+1 | | T=C(2+Ax) | | -3(2)+7(0)=-6 |