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)
3/5 = 8/y // - 8/y
3/5-(8/y) = 0
3/5-8*y^-1 = 0
-8*y^-1 = -3/5 // : -8
y^-1 = 3/40
-1 < 0
1/(y^1) = 3/40 // * y^1
1 = 3/40*y^1 // : 3/40
40/3 = y^1
y = 40/3
y = 40/3
| 3/4x-1/2=3/2 | | H/4-5=9 | | 2x+4+4x+20=180 | | 8x(2)-7x-1= | | (5b+2)(-7b-4)= | | -0.5x+9=10.5 | | (5n-2)/4=7 | | 3/(5-3a)=1/2 | | 3x-58=x/2-8 | | 3/8÷9/4 | | 2X+y=152 | | 4(n-5)=2(-n+2) | | 2x+49=-3(x-8) | | 8x+1+9x+4=90 | | 3n+5=n-7 | | -2(v-3)=8v+26 | | 4(8n+2)=5 | | -5-u= | | -4y-20=-7(y-1) | | y=2E+06x+15658 | | 90+30+66+x=180 | | (9+2x)*6=14+7x | | y=7(5x-9)(3x+1) | | t*4-8=14 | | y=(5x-9)(3x+1) | | 45+11m=16m | | 3n+18=39-1n | | 8(x-4)=6(x+7) | | x*0.01=x*0.0125+25 | | 3(x-3)=12X-3 | | 0.8x+0.4x=36 | | -8v+3-5=-9v+8 |