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-(4/y) = 8 // - 8
10-(4/y)-8 = 0
10-4*y^-1-8 = 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
| 50*90= | | 10/(9r)+10/(7r) | | 61+187=m | | x^2-9x=x-23 | | y/5-6=21 | | -1116/-180 | | 2b^3/b^4 | | 12=3(p+1) | | 28x/28=-9/28 | | 187x=3118 | | x/7+6=55 | | 10t-3=2t+3 | | 0+2x=-12 | | -1-37x+38x^2=0 | | 6=x-7 | | -10x-11=-11 | | 34=-5-6c+3c | | (2/7)*x-7=11 | | 564x=744(x+-1.5) | | -19=y/3-6 | | 84=9x-6 | | 61x=3118 | | 564=744(x-1.5) | | -1=7+2w | | 8x-2=40x+22 | | (3y-2)(y+4)=24 | | x-(.06y)=423000 | | 4q=10-2 | | 3ex=45 | | (5x/x+2)-(9/x-4)=5 | | 34.83=7x+3.61 | | .24(24)+.04X=.08(18+X) |