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)
(17600/X)*(24000-X) = 1600 // - 1600
(17600/X)*(24000-X)-1600 = 0
17600*X^-1*(24000-X)-1600 = 0
17600*X^-1*(24000-X)-1600 = 0
422400000*X^-1-19200 = 0
422400000*X^-1-19200 = 0
422400000*X^-1 = 19200 // : 422400000
X^-1 = 1/22000
-1 < 0
1/(X^1) = 1/22000 // * X^1
1 = 1/22000*X^1 // : 1/22000
22000 = X^1
X = 22000
X = 22000
| -6/5u=-36 | | 3/24x=6 | | 2x-34=120 | | 4x+2y+6=0 | | -3/2v=-6 | | 10x+25y=920 | | 32x^2+28x-49=0 | | 9.20=10x+25x | | 6*2+0.25(6*2)/5 | | 10/3=5y | | 120+(-45)= | | 10m+4n-4m+11m= | | 15x+0.07(50000-x)=5000 | | -18+23=m-6 | | 5x+106=14x-11 | | 10+18x-2=2x+12+4x | | 9y+3-2y=12-6y+4 | | 3x-(4y-3x)-4y=7x+(5-4y)2 | | 5(x+2)/6=2x-3 | | m^2+10m+5=0 | | -.848=-.2(6.5n-3) | | 6x-5=63 | | 5(2y+3)-4y=3(2+y)+39 | | 2n-2/3(4n+12)=n+7 | | 2(x-4)+(3x+5)=2x-2 | | 3x+26=7x-54 | | -4-x=4x+2-6x | | 12=-6(5x-2) | | k-5/3=11 | | 2c^2-2=256 | | 3(x-9)=74-2(61+2x) | | g-3/3=4/3 |