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)
73/9 = 93/x // - 93/x
73/9-(93/x) = 0
73/9-93*x^-1 = 0
-93*x^-1 = -73/9 // : -93
x^-1 = 73/837
-1 < 0
1/(x^1) = 73/837 // * x^1
1 = 73/837*x^1 // : 73/837
837/73 = x^1
x = 837/73
x = 837/73
| 0=20000-220x+.045x^2 | | 13=a/9=14 | | 9=k-10 | | 9/73=93/x | | 9/73=x/93 | | 1/4x-7/8x=15-40 | | Y+2.2=-9.7-5.3 | | 13/6=65/m | | 13/3=65/t | | y=-x(x-220) | | x/5-1=0 | | 45+(-15)+30+(-70)+(-10)+5= | | 4w-12=2+3(w+11) | | 10-7=x/3 | | 5(19-5y)+2y=2(19-5y)+3y | | -9x+2+10x=-16+4 | | 0,45=(40000000-x)/40000000 | | 2-7n+5n=16-48 | | 4x^2-3+9=2x+1 | | -(x-3)+-(x-4)= | | x=.044v^2+1.1v-165 | | -9r+6t-8s-5r+12s+4t-t+5s-11r= | | x-64/x | | 129-94=30y-37y | | 5w+2-4w=6-4 | | 15/n=5/2/27 | | -(r+3)+3(3-5r)=-42 | | 9=2w-6w | | 5(4+x)-6(x+2)=12 | | X+x+1+x+8+x+5+x+4+x+6=150 | | 6(5-6x)-6(6+x)=-48 | | 4z+1=25 |