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)
(9*y)/y-8+4 = (5*y)/y-8 // - (5*y)/y-8
(9*y)/y-((5*y)/y)-8+4+8 = 0
(9*y)/y-8-5+4+8 = 0
8 = 0
y belongs to the empty set
y belongs to the empty set
| (10x-4)(16x+6)=0 | | 14m^2-21m=0 | | 1/3x-3/4x=1/12 | | 4-9b-2b= | | 64x^3-16x^2-4x+1=0 | | 1+9k+6k= | | 4c^2-6c=0 | | 1+(18-7x)=-9 | | 6=10 | | 8-(-4)(-3)= | | Y/2-20=7 | | 8(c-2)+(5c+9)= | | -5v+2v= | | 2z^2+6z=0 | | 1+6m=6m-6 | | 2x+9=2x+1 | | 6-6b=4b+16 | | 8(2+9)=56 | | y=x^2+16x+65 | | 6x^2+19x+3= | | -2t-8+6t=7t-9 | | (5+2x)6=-16x+2 | | 3+8x-10x-4=11+4x | | x/4-4+x/7-1 | | 21+2x=-9+12x | | 7x-7=7x-21 | | 18+-18=0 | | 6x^3+30x^2-16x=0 | | 15.25+1.25=9 | | 20+-2=18 | | y=2x^2+10x-48 | | 4x=-3(-2x+3) |