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)
10/y = 1 // - 1
10/y-1 = 0
10*y^-1 = 1 // : 10
y^-1 = 1/10
-1 < 0
1/(y^1) = 1/10 // * y^1
1 = 1/10*y^1 // : 1/10
10 = y^1
y = 10
y = 10
| c/4=18=8 | | d-2.7=-2 | | 14/z=1 | | -7x+16=-5 | | 10*(-8x+7)=-170 | | 2x+2=-5 | | z+4=15 | | 9a+2b-2a-3b= | | 40=6x-10+2 | | abs(z+2)=abs(z+3i) | | 2+3x-3=x-1 | | P=2(pi)10 | | -5-4v=6v+99 | | 2e=7e-2 | | (7r-6s)(4t-5u)=0 | | 3-(-8m+n)=0 | | 6n+21=-3-2 | | t=12.25t+9 | | 11-5x-6=x+2 | | 12/0.5×10/10=120/5 | | x-(3+2y)=0 | | (3-x)(3+x)=3-(x-3) | | 2x+20y-10=18 | | 1+2h=h | | x(x+3)dy-y(2x+3)dx=0 | | 8/10=w/25 | | a+(b+9)=0 | | 20=11-4y | | -6x-6y=2 | | 0=-c^3+16x-64 | | 2x(20y-10)=180 | | 12=5x+20 |