If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(2/3)*x-1 = 5/3-(2/x) // - 5/3-(2/x)
(2/3)*x+2/x-(5/3)-1 = 0
(2/3)*x+2/x-5/3-1 = 0
2/3*x^1+2*x^-1-8/3*x^0 = 0
(2/3*x^2-8/3*x^1+2*x^0)/(x^1) = 0 // * x^2
x^1*(2/3*x^2-8/3*x^1+2*x^0) = 0
x^1
(2/3)*x^2+(-8/3)*x+2 = 0
(2/3)*x^2+(-8/3)*x+2 = 0
DELTA = (-8/3)^2-(2*4*(2/3))
DELTA = 16/9
DELTA > 0
x = ((16/9)^(1/2)-(-8/3))/(2*(2/3)) or x = (-(-8/3)-(16/9)^(1/2))/(2*(2/3))
x = 3 or x = 1
x in { 1, 3}
x in { 1, 3 }
| 25y^2-64=0 | | (9a+2)+6a=47 | | X-8.4=-5.4 | | 7x^2+28x-147= | | X^2-14x+130=0 | | (30c+6)-29c=6 | | 9x^2-5x+136=0 | | 3x^3+x^2+8=0 | | -2y+4y=0 | | 4h^2-28h+49=0 | | 4m=2(5m+18) | | 4(-4)=16 | | (4x+3)-6x=-19 | | 14.4=-0.2p+3 | | x=-5+2(5) | | 21x^2+21x-42= | | e^1-4x=12 | | 0.3(-5+2y)-0.2y=0.5 | | 3x/5y=-20 | | 8m^2-104m+336= | | (x-5.6)(x+4.5)= | | -14.4=-0.2+3 | | (20b-1)-10b=-31 | | 4y=3+x | | 6x^2+24x-30= | | (7x+9)+(-8x+5)= | | Ln(x^2-3x)=4 | | 0.5(.8)-0.4y=3.6 | | x^2+5x-24=12 | | p(3)=x^5-7x^3-4x+10 | | x^2+5x-247=12 | | 3(0.6x+0.5)= |