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)
(2533000/x)/1277.59 = 27.68 // - 27.68
(2533000/x)/1277.59-27.68 = 0
1982.63918785*x^-1 = 27.68 // : 1982.63918785
x^-1 = 0.01396119
-1 < 0
1/(x^1) = 0.01396119 // * x^1
1 = 0.01396119*x^1 // : 0.01396119
71.62713207 = x^1
x = 71.62713207
x = 71.62713207
| f(-2)=3(-2)-9 | | 5*5*5*5=70 | | 17n^2-29n=0 | | -9x-7-4x-6=15 | | 1/4(5x-9)=3 | | 3w+8x-11y+4w+7x+4y= | | 8x^3-18x^2+4x= | | y=8000+4x | | -2ln(x)+ln(y)=ln(6) | | K(n+1)=3n+2 | | 1/2-x/9=2x-9/9 | | x=4x^7+2x^4-10x^3-5 | | 5x-7=5(x-4) | | 5p+8.8=13.7+4p | | -4(-7x+7)=0 | | 7(-1x+2)=-49 | | r-19=-39 | | 2x+7+4x=-5 | | 6x-16=48 | | 6x+1+3x=46 | | (2x+4)(3x+5)=0 | | 3x+=30 | | 5x-3+2x=-80 | | 7=3x-x+3 | | -14=-3x+7x+10 | | 20-4x=-6x+12 | | (n-2)180=60 | | -4+4x+6x=-54 | | 7x+6+6x=110 | | t/-12=-4/15 | | -2*-4=5+8 | | -6+6x-4x=16 |