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)
(2/3)*u-(1/u)-1 = 0
(2/3)*u-u^-1-1 = 0
2/3*u^1-1*u^-1-1*u^0 = 0
(2/3*u^2-1*u^1-1*u^0)/(u^1) = 0 // * u^2
u^1*(2/3*u^2-1*u^1-1*u^0) = 0
u^1
(2/3)*u^2-u-1 = 0
(2/3)*u^2-u-1 = 0
DELTA = (-1)^2-(-1*4*(2/3))
DELTA = 11/3
DELTA > 0
u = ((11/3)^(1/2)+1)/(2*(2/3)) or u = (1-(11/3)^(1/2))/(2*(2/3))
u = 3/4*((11/3)^(1/2)+1) or u = 3/4*(1-(11/3)^(1/2))
u in { 3/4*(1-(11/3)^(1/2)), 3/4*((11/3)^(1/2)+1)}
u in { 3/4*(1-(11/3)^(1/2)), 3/4*((11/3)^(1/2)+1) }
| n*5=78 | | t^2+4t+3= | | -2=(3x/5)+1 | | -26+4x=3(x-6) | | 2x+1-5=3 | | 6y=18(1)-6 | | 33+4p=7(3p+1)-8 | | c^2+18c= | | 6y=18(1/3)-6 | | 3-6a=5a-4(3+2a) | | 3-6a=5a-4(3+3a) | | z=3x^2+9xy^2-5x+4y | | s^2+10sg+21g^2= | | 22+b=-3(8b+1) | | 7(b-6)=-32+2b | | 6y=18(0)-6 | | 6+7(8a+3)=27-5a | | 10*10+6*8-(7+3*5)= | | -3/2(6y+8z) | | 2x/1+1=7 | | 5x=12x-4 | | c^3+3c^3+3x+9= | | (64r)^1/3(2r^1/2) | | 8(4+6b)+4b=7b-13 | | c^2+c-56= | | 10*10+6*8*(7-13*5)= | | 17=27-1 | | 8(4-6b)+4b=7b-13 | | k+3d=4c-6d | | 3+4r=9+6r | | 8-2x=1-2x-7x | | 6y=18x-6 |