If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( d )
d = 0
d = 0
d = 0
d in (-oo:0) U (0:+oo)
-3/d = -80 // + 80
80-3/d = 0
-3*d^-1 = -80 // : -3
d^-1 = 80/3
-1 < 0
1/(d^1) = 80/3 // * d^1
1 = 80/3*d^1 // : 80/3
3/80 = d^1
d = 3/80
d = 3/80
| 3q+4=16 | | S+6=-6 | | -53-2i=-i+29 | | 4+52=-44-28 | | 1.25x=1 | | -125+9x+2x=40 | | 3d-6=6 | | z-449=-25z-7 | | 35x-10-19x=16x-12+2 | | 8x-13x=-45 | | 2(4x+22)=48 | | 15x+8y+21z=231 | | 9d=-450 | | (-7a^5)^2*(-3a)^4/(-7)^2*(-3a)^4= | | 4p+44=p-43 | | 3y-2=-(2-3y) | | (-7a^5)^2*(-3a)^4/(-7)^2*(-3a)^4=x | | 27=3(p-3) | | (-7a^5)^2*(-3a)^4/(-7)^2*(-3a)^4 | | 3x+14forx=12 | | y=3x+-5 | | x-39=72 | | 17c+8=c-344 | | ax-b=3x-4 | | .40/3772.50 | | -6(7+8k)-2k=8 | | 5=.5(-6)+b | | c+99=-8c-9 | | 6(n+7)-3=57 | | 8y+5x=164 | | x+120=-7x-8 | | 9x+29=-7 |