If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( u )
u = 0
u = 0
u = 0
u in (-oo:0) U (0:+oo)
-6 = -(3/u-1) // + 3/u-1
3/u-6-1 = 0
3*u^-1 = 7 // : 3
u^-1 = 7/3
-1 < 0
1/(u^1) = 7/3 // * u^1
1 = 7/3*u^1 // : 7/3
3/7 = u^1
u = 3/7
u = 3/7
| -3x-12=-6(9-2x) | | 11-2x-7-8x=6 | | (y/4)=(3/11) | | -8x+14+12x-18=0 | | 8x=78-46 | | 5x-3=6(4x+9) | | 4+x/5=0 | | 2(x-6)=25 | | 10x-9+2x+4=0 | | h=5vt+14t^2 | | 6(a+2)+3=(10-3a) | | 13/5=x/12 | | -3-2x+4x=x+3 | | -2[p-5]+7p=-3 | | 5x-2x-4x=0 | | 225-33= | | Lg(x^3)-lg(4x)+lg(4)=4 | | 2/(5/6) | | 5x^2+10x+6=0 | | (8/3)/8 | | 16y=-8x-24 | | 2=11 | | 2=11 | | (6/7)/(14/15) | | 7/16(7/16z) | | 14c-8c=30 | | x+3x+10=5x+8 | | 7-7x=29x+24 | | 1r/2+2(3r/4-1)=1r/4+6 | | 6x-11-6x=11 | | 6/7/14/15 | | 3x-4x+2x= |