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)
6/x = 5/11 // - 5/11
6/x-(5/11) = 0
6/x-5/11 = 0
6*x^-1 = 5/11 // : 6
x^-1 = 5/66
-1 < 0
1/(x^1) = 5/66 // * x^1
1 = 5/66*x^1 // : 5/66
66/5 = x^1
x = 66/5
x = 66/5
| 1/18x^2-1/9x-1 | | 2(1-1x)-8=1x | | 7.2/m=2.4/1.8 | | -14r=322 | | 136=y+144 | | -16+(-28)= | | 17=11y+2x | | 6/7x-6/7=8 | | 9x^2-2x-2=0 | | x/5-3=12 | | -3x-8(5x-3)=24 | | 3a(2)+b(4)= | | x=-7y+34 | | 5x+3=43-4x+x | | 1/2-5=-8 | | 32a+4b= | | 7/4/5f-5/6=7/30f | | 0=-16t^2+31t+2 | | 5(3+4x)=35 | | 4*(x+2)= | | 3x+5y=16fory | | d/3-81 | | p(x)=x^3+2x^2-12x+1 | | 13.877=-4.9t^2+68t | | 12x+16y=80 | | 4x+7*5=51 | | -w+21w^2-104=0 | | 6/a=3/1 | | -w+21wx-104=0 | | 3*2+4(9+1)= | | 5/8x=30 | | -15+4/5p=9 |