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)
(2*x)/x+4 = 4-(8/x)+8 // - 4-(8/x)+8
8/x+(2*x)/x-8-4+4 = 0
8*x^-1 = 6 // : 8
x^-1 = 3/4
-1 < 0
1/(x^1) = 3/4 // * x^1
1 = 3/4*x^1 // : 3/4
4/3 = x^1
x = 4/3
x = 4/3
| 3(.75)=x | | 6x+5+5x=50 | | 12(2x-3)+5(7x-9)= | | 5x+1=-8 | | f(x)=2x^2-5x+3 | | -3-4(-1-x)=2 | | 41/5-35/6 | | y=-2/3x+3 | | 10(x-7)=7x-20 | | 34=4x+3 | | 2b-a-(4b-2a)= | | 5(5x-4)+10(9x+3)= | | 8(12m+19)= | | -2(x+2)+3x=11 | | 3z+4z+z= | | 1+3x=-36 | | 13x+7=9x+15 | | 13x+5=10x+8 | | x^4-9x^2=-20 | | 5x+x=5x-6 | | 10y-15=3y-5 | | x^4-9x^2=20 | | 13+23=3x-23+33 | | 18x-8=24 | | 2x+2=3x+3 | | 14=18+12m | | 8+5(s-4t)= | | 3x(2)=48 | | 3(2x+5)=4x-5 | | (2w+7)(6+w)=0 | | p=-0.1x^2+27x-1700 | | 5x^3-6x^2+12x=0 |