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 = 2.5/4 // - 2.5/4
10/y-(2.5/4) = 0
10/y-0.625 = 0
10*y^-1 = 0.625 // : 10
y^-1 = 0.0625
-1 < 0
1/(y^1) = 0.0625 // * y^1
1 = 0.0625*y^1 // : 0.0625
16 = y^1
y = 16
y = 16
| X=16x^2+96x+6 | | (-2x+3)+(4x-3)= | | n/2=0.7/0.4 | | 2a+4b=20 | | 0=6x^2-18x+12 | | 0.1+05x+6=6 | | 7+d=10.5 | | d=38+36(5) | | 24+2y-5=9y-11-2y | | 0.6x+5.4=2.7 | | -8+m=-80 | | 4x-7(7x-8)=-34 | | (2w-2)-(8w+-4)= | | d=38+36g | | 3d-6=-1.5 | | 61=(4x-6)+(7x-32) | | 7.3=(2x)/(1-x) | | 8x+4y=-48 | | m^2+16m-59=0 | | c^2=-13c+30 | | 3(2m+1)+10m= | | 2/3=7/y | | M+(-15)=-30 | | 4.5(1+2.5a)=15.5 | | 2(-2+2x)+4x-3(2+3x)=-1 | | -51+7x+16+x=11x-3 | | X-9=192 | | 5/g=6/3 | | -3/8*-4=20 | | X-13=38 | | 2(m-5)=5(m+3)-13 | | (8+r)5= |