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)
20/x+9 = 5/3 // - 5/3
20/x-(5/3)+9 = 0
20/x-5/3+9 = 0
20*x^-1 = -22/3 // : 20
x^-1 = -11/30
-1 < 0
1/(x^1) = -11/30 // * x^1
1 = -11/30*x^1 // : -11/30
-30/11 = x^1
x = -30/11
x = -30/11
| -5=s+-3 | | 3x-7(x+5)=-79 | | -4/12x+11/12=-6/12 | | 2x^3-18x^2+x-9=0 | | 2h-1/3=h-4/12 | | 1/1/7y-9=27 | | 12-(4m+5)=3+4m-12 | | 174=2x+36 | | 1b-6=14 | | 3/5x+15=26 | | -84k=2688 | | 3-6x=3/4y | | 2/3m=1/4m-5 | | 174=-3(-2x-2) | | 3-3/4y=6x | | -18+p=48 | | 2x^6-26x^5-96x^4= | | 10-2x=3x-30 | | 12-2+5=-1 | | 3(x*5)=60 | | 1+M/3=4 | | 1.5x+3.5=x-0.05 | | b^2+6b+14=5 | | 12-2m+5=-11 | | -2x-3(-5x-13)=-65 | | 9x-(8x+4)=3x-30 | | 3/4x-3=-237/4+7x | | 3/5y-2=4 | | 15-2x=3x-30 | | ln(x-9)=4 | | 1/-2z+5=7 | | b^2+6b+14=0 |