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)
9/x = 18 // - 18
9/x-18 = 0
9*x^-1 = 18 // : 9
x^-1 = 2
-1 < 0
1/(x^1) = 2 // * x^1
1 = 2*x^1 // : 2
1/2 = x^1
x = 1/2
x = 1/2
| (3u+8)(3-u)=0 | | 7(x+3)=2(x-4) | | 4(1+x)=80 | | lx-2l=3 | | Y=9mx+b | | 3x*2+y=14 | | 3y-x-4=0 | | 9x^2-6x-5=0 | | (4*1)+(4*x)=20 | | (1/4)(-12)= | | (1/4)(-12) | | 5x^2-16x=-25 | | -62-(-23)= | | 20-3x/x | | -10+29= | | x=-26 | | 15*x*x-30*x-45=0 | | 8x/60 | | (9+v)(5v-2)=0 | | 6x-21=x+14 | | 2-3/a | | 7x-1=x+17 | | 17x+28+8x=-12+x | | (-40x^8)^(1/3) | | 5h=5h+(18.59-5h) | | (7+w)(5w+2)=0 | | 10-6=5 | | 4(a-2)=a+7 | | x+30=6x | | 4(x-2)+9=x+5 | | 6*3=(x*5)-(x*2) | | (x-2)(x-11)=0 |