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^3 = 0
y^3 = 0
y^3 = 0
1*y^3 = 0 // : 1
y^3 = 0
y = 0
y in (-oo:0) U (0:+oo)
(8*y^4)/(y^3) = 0
8*y = 0 // : 8
y = 0
y in { 0}
y belongs to the empty set
| 5(x-2)=3(x-6) | | 4xy-16ysquared= | | 5r^3y^4/2ry^5 | | 4a+9a=-18 | | -4(2x-8)=20 | | 35/42=5/x | | 8y+10=11y-13+10y-6 | | 6(x-6)-8x=-20 | | 2k-6-7+3k=-48 | | Y=A(2x)+8 | | 8+6y=5y-2 | | 11x+6=4x+13 | | 2w+15=35 | | 40/60=x/ | | -10(s+4)=-83 | | 7x-y+3=x | | 8k+6+9k=-26 | | 40n+8=12n+-4 | | (2/1)4/3 | | (3x-1)/4x-9=5/7 | | 7(3s+4)=280 | | 4(a-3)=28 | | 2x+3x+5x=3x | | a*2-b*1=c | | 2n+101=2n+1 | | 5k+4j-3k+6j= | | b/1.4=306 | | x-(11-2x)=16 | | 2lx-1l=3 | | cosx+4=3 | | 24=2(4v-5) | | 2(x+3)=3x+9 |