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)
5/8 = 13/y // - 13/y
5/8-(13/y) = 0
5/8-13*y^-1 = 0
-13*y^-1 = -5/8 // : -13
y^-1 = 5/104
-1 < 0
1/(y^1) = 5/104 // * y^1
1 = 5/104*y^1 // : 5/104
104/5 = y^1
y = 104/5
y = 104/5
| 6l-5*(7-4)=0 | | 4(-8x+5)=-26 | | 7x^2-1.5x^2=5 | | 3(2x-6)-4+6=14 | | -b+8b=-14 | | 3n-2(n+3)=0 | | 56=2x+2(x+2) | | x/3-7=8 | | -4x=4y+44 | | 56=2x+2x+2 | | 3v+-2v=-13 | | 2p+5-10p=45 | | 8x^3+58x^2+85x-25=0 | | -b=2x-4y | | Mm-7=93 | | 4y=2x+b | | 25k+130=130 | | 2x-4y=b | | 12-3*(a-15)=10+5*(5-a) | | 14.6-16n+11+(-3n)-15= | | 4w-8w+9=w-5 | | 8=-7q+36 | | 30=10*(5-h)+4h | | 16x-15y=19 | | 2*(x+5)-3*(2x+6)=0 | | -5(x+2)=3(y+2) | | -4(2-y)+3y=(3y-4) | | 6(7-y)+y=36+y | | 6(7-y)+7=36+y | | (4x-11)=39 | | (2x-4)=90 | | 3(y+8)=7y |