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)
3/7 = 12/y // - 12/y
3/7-(12/y) = 0
3/7-12*y^-1 = 0
-12*y^-1 = -3/7 // : -12
y^-1 = 1/28
-1 < 0
1/(y^1) = 1/28 // * y^1
1 = 1/28*y^1 // : 1/28
28 = y^1
y = 28
y = 28
| 8/3g=4/5 | | 35=7(1-5x)+6(1+4x) | | a(bx-2)=cx+10 | | 2x+2=4x+12 | | 4(x+2)-(2x-4)= | | 8/5g=4/5 | | 8(6.125-9)=6(2*6.125-12)-4*6.125 | | (81/x^2)+(72/x)+16 | | X+4=19-2x | | a+2a-3=30 | | 5x^2y+25xy-65y=0 | | n-(1/2)=(59/14) | | 2*3=6 | | 1/3x-4/3-1=8 | | 7-6u=fu+29 | | 44=8(2-5x)+6(x-1) | | 3n+12-5*n=22 | | -(4/3)x=(10/9) | | 150=75x | | 1-1/x-9/x^2=0 | | 2.9=2b+4.1 | | C=b+v/g | | 0=(300x-2x^2)-(100x+4250) | | 100+10m=0+15m | | (9/10)n=-(27/25) | | n+(n+1)+(n+2)=57 | | 3y+7+y+43=7y+40-5y | | 23=6x+5+3x | | -3+2a=30 | | m=2+b/2 | | 6(r+8)= | | 6(r+8)= |