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)
k = (100-x)/x // - (100-x)/x
k-((100-x)/x) = 0
(-1*(100-x))/x+k = 0
(-1*(100-x))/x+(k*x)/x = 0
k*x-1*(100-x) = 0
k*x+x-100 = 0
k*x+x-100 = 0
k*x-100 = 0 // + 100
k*x = 100 // : k
x = 100/k
x-100*k^-1 = 0
(x-100*k^-1)/x = 0
(x-100*k^-1)/x = 0 // * x
x-100*k^-1 = 0
x-100*k^-1 = 0 // + -100*k^-1
x = -(-100*k^-1)
x = 100*k^-1
x = 100*k^-1
| b^2+2b-8=0whatisb | | 22-3v=10 | | 1.4+.4e=.2e-.8 | | 1-6x=4x-79 | | -2x+3(-3x-5)=18 | | 0.125y+0.1(800-y)=130 | | 5x=-y+10 | | x^3(x-1)=11x^2-9(x+2) | | 15x+8=4x+13 | | a=300-2x | | X-3.5=-2.1 | | p=2(l+a)forl | | -8.6(-84x-68)=-17.2(8x-93) | | 9+3x+3x=-33 | | 5x^3*3x^5= | | 110=16t^2+48t | | 2x/8=140/80 | | 7/10=2/x | | W^3=216-1 | | -5=-6+f | | 50+x+53=180 | | 0.2n=1.3 | | 5m-6=5 | | -8x-3x+2=-8x-8 | | X-5(x+2)=x+3(3-2n) | | 18=-6(2y+5) | | h+21=370 | | -4=-2.6x-8+0.6x | | (60*2)*4= | | t-60=250 | | 1+.80x=.75x+2 | | x+22=2y+44 |