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)
122/x = 2 // - 2
122/x-2 = 0
122*x^-1 = 2 // : 122
x^-1 = 1/61
-1 < 0
1/(x^1) = 1/61 // * x^1
1 = 1/61*x^1 // : 1/61
61 = x^1
x = 61
x = 61
| 16-5h=6 | | a/10=-2/5 | | 4x^2-972=0 | | (x-6)2=-6 | | V^2-8v+48=0 | | 3/8-11/40 | | (m/2)-6=-2 | | 24+x=-8 | | 7/6=28/x | | -12=x+19 | | 10.8x-2.3x=-170 | | 2/x=1/7 | | 100x+500y=8500 | | 63*51/2= | | 40-0.7= | | 36b^2-25p^2=0 | | 2x-4=5x+3 | | (X-1)/3=x^2 | | 55.10-0.45= | | 8x^2=-10x+7 | | -x/(3x^2)=1 | | 5(300-100/5)-(3x26-(8-2x3) | | 3t^2-7t-6=0 | | -x/(3x^2) | | g(-4)=3x^2-3x | | Z^5/7 | | -x/3x^2 | | 6x^2+72x+240=0 | | 8x+6y+2+20x-18y-9= | | f(x)=-4+12 | | 6x=16x^2-2x+6 | | 24s^2-294=0 |