If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( Y )
Y = 0
Y = 0
Y = 0
Y in (-oo:0) U (0:+oo)
3/Y = 12/20 // - 12/20
3/Y-(12/20) = 0
3/Y-3/5 = 0
3*Y^-1 = 3/5 // : 3
Y^-1 = 1/5
-1 < 0
1/(Y^1) = 1/5 // * Y^1
1 = 1/5*Y^1 // : 1/5
5 = Y^1
Y = 5
Y = 5
| 85-68x/4x-5 | | 1-g=3 | | (X+23)+57=180 | | 6+3x=9+12x | | -4x-7y=56 | | 32x^3-52x^2+17x+3=0 | | .5d+.3=2d | | 20-10x=6(x-4) | | -5+7v=8v | | 18k+9k+-16=11 | | 23f-41=34f+4 | | y^2-125y-444=0 | | 4(b+5)-(-16)=16 | | c-1.89=3.9 | | (7x-11)=(4x+58) | | 27=18v-9v | | 23f-41=34f+42 | | 2/3×=6 | | 2/5x^2=160 | | 4(2x-3)+5=15 | | -1+3c=4+4c | | -5(2r+3)=3(-11-4r)-58 | | R/15=4/5 | | -7+5x=-35 | | t^3+8t^2-84t=0 | | -2(w-7)=-4 | | 2.55/17 | | -7(-3w+3)-8w=3(w-7)-5 | | Rx+h=sx-k-k | | 13x-21=x | | 15x=200+1.50x | | 4(2x+3)+5=15 |