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)
4/y = 2 // - 2
4/y-2 = 0
4*y^-1 = 2 // : 4
y^-1 = 1/2
-1 < 0
1/(y^1) = 1/2 // * y^1
1 = 1/2*y^1 // : 1/2
2 = y^1
y = 2
y = 2
| 0=8t^2-95 | | x^2+8x-20=x+10 | | 0.6-2*x=0 | | -5x-7+7x=-4 | | 6(x-0.4)=-2(x+22) | | 2[m-8]=12 | | 6(x-1/3)=-2(x-23) | | 6x^2-12x+17.5=0 | | .4A+.3=20 | | fcn3^/5 | | f(x)=1.5x-1 | | 9x-13-7x+19=4 | | 2x-5-1=3-(-8) | | 5*x+525=0 | | (4x+7)(x-1)=36x-15 | | 8=3x+2x-7 | | m(x-3)=5 | | -7x+12+9x-23=-2 | | 12.5n=125+1.9n | | 50/72 | | 3[x+9]=60 | | x*15=30 | | z^4+8z^2+9=0 | | .25(6x+12)=20 | | -97x+50=-22+78x | | =8-4(q-2)-8 | | 2mx-5=x+m | | x*15=3.75 | | 8=4(q-2)-8 | | 10x-5x=20x-5(X-4) | | 3(2p+4)=24 | | 3/-4g18 |