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)
4/x-4-1 = x/x-4 // - x/x-4
4/x-(x/x)-4-1+4 = 0
4/x-4-1-1+4 = 0
4*x^-1 = 2 // : 4
x^-1 = 1/2
-1 < 0
1/(x^1) = 1/2 // * x^1
1 = 1/2*x^1 // : 1/2
2 = x^1
x = 2
x = 2
| -3v+7=-v+49 | | 5-12y=6-6y+5 | | 4/12*3/12 | | 8c+3c+4c+c-15c=12 | | 2h-1/10=58 | | 5+3(1-2f)=17 | | 3(x-4)+5y= | | -5x-18-3x=38 | | 14+(x+12)=4x | | (2x-5)+x+(x+25)=180 | | a^5-5a^3=0 | | 15y^2+14y^2+3y= | | -5-18-3x=38 | | 7x-6x=6x+19 | | 8y-7y+3y=16 | | -8(0.09)(-0.5)= | | 1.25+0.35x=2.80 | | 6k^2+15k-9=0 | | 1/2(8w) | | 7q+3q=10 | | 5x+15=8x+28 | | 4x-2=25+x | | .75x=16.5 | | b*b-b-12=0 | | 72=3x^2+18x+24 | | (12-8i)(-4-1)= | | 6[2x-1]=-5[3x-15] | | 38x+42=36x+52 | | p*p+9p+8=0 | | -x-35+6x=15 | | 8+2x=-5x+36 | | -(6)p+(-6p)=-112 |