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)
10/x-(5/x)-2 = -3/x // + -3/x
10/x-(5/x)-(-3/x)-2 = 0
10/x-5*x^-1+3*x^-1-2 = 0
8*x^-1 = 2 // : 8
x^-1 = 1/4
-1 < 0
1/(x^1) = 1/4 // * x^1
1 = 1/4*x^1 // : 1/4
4 = x^1
x = 4
x = 4
| (10/x-2)(-5/x)=-3/x | | 10/x-2-5/x=-3/x | | y+3y-(y+4)=11 | | 2x+=9 | | 6y/8+11=84 | | x*x-4x-21=0 | | x*x=36 | | 70=l^2-3 | | d^3=9d | | 15y-4=x | | 8x-16/(x^2)-2x=0 | | 8x-16/(x^2)-2x | | 100=49g^2 | | 12-4/5x=-24 | | 15y-4= | | t^2+8t=33 | | c^2-14c+40=0 | | b(b-1.2)=0 | | 21y-4= | | (11q+5)(q-7)=0 | | 5(n+2)=1c | | 21y=4-3x | | 2x^2+9x+4= | | 0.45x+0.70(120-x)=-0.15x | | factorg(x)=3x^2-8x+5 | | -2q-5=11 | | 2(-9)2y=-5 | | 25-4/10s=0 | | 2x-3(4+x)=19-2x | | 8-6(2x-4)=5-(x-3) | | 2x^3+x^2-13x+6=0 | | 25-4/10s=30 |