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)
8/9 = 10/x // - 10/x
8/9-(10/x) = 0
8/9-10*x^-1 = 0
-10*x^-1 = -8/9 // : -10
x^-1 = 4/45
-1 < 0
1/(x^1) = 4/45 // * x^1
1 = 4/45*x^1 // : 4/45
45/4 = x^1
x = 45/4
x = 45/4
| 0.25x=0.15x+2.70 | | 5x-19=4x-12 | | 5x-4-7x-3=4x+2-x-3-6x | | -8=7x+7-4x | | 1046/610 | | an=12n+1 | | x+9=13-2 | | y-4=-2/3(x-6) | | x-1/3-2=x-1/4 | | -6(-3x+2)=150 | | 9b^2-64f^2= | | -20=-6x+2(x+6) | | 9b^2-64f^2=0 | | (8x-46)/2=25 | | 6x+5y=49 | | 3n(5n+9)=11 | | -6+13+9y=8y-3 | | ln(5x+9)=4 | | 7(x-4)+7=6-(x+5) | | 5x-3(x+2)=17 | | sin2x=-(2^(1/2))/2 | | (2x+10y)=70 | | X-(-146)=312 | | (5y-7)x(-y)= | | 3(x-8)=3-2x | | (2x+10y)=170 | | 4y^2-20y= | | -3x-4=-4x+3 | | N/5-6=0 | | -2(p-15)+5=15 | | A/2-5=1 | | 2x+6=-x-18+2x |