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)
(4/3)*x+2/x = 6 // - 6
(4/3)*x+2/x-6 = 0
4/3*x^1+2*x^-1-6*x^0 = 0
(4/3*x^2-6*x^1+2*x^0)/(x^1) = 0 // * x^2
x^1*(4/3*x^2-6*x^1+2*x^0) = 0
x^1
(4/3)*x^2-6*x+2 = 0
(4/3)*x^2-6*x+2 = 0
DELTA = (-6)^2-(2*4*(4/3))
DELTA = 76/3
DELTA > 0
x = ((76/3)^(1/2)+6)/(2*(4/3)) or x = (6-(76/3)^(1/2))/(2*(4/3))
x = 3/8*((76/3)^(1/2)+6) or x = 3/8*(6-(76/3)^(1/2))
x in { 3/8*(6-(76/3)^(1/2)), 3/8*((76/3)^(1/2)+6)}
x in { 3/8*(6-(76/3)^(1/2)), 3/8*((76/3)^(1/2)+6) }
| 6n-10=-46 | | 2(m+20)+(60-m+20)=138 | | 5(c-5)=-10 | | -n+8.5=14.5 | | 49/11(18-5) | | -4+4n=24 | | -3=-6u-14 | | (b+11)+(b+6)=33 | | -2/7m=-8 | | xsquard=18 | | 81x^2-196y^2=0 | | 3/x-4=12/28 | | 2(a+18)=3(a+8) | | 2x-8x-6y+9-14+x+11y= | | 1/8z=1 | | 35y-14=36y-6 | | (3-i)/(8+6i) | | .75(4+y)=12 | | 4-x=6x+3 | | -12+(-8)= | | 64x^2-255y^2=0 | | 15+9m-8=88 | | 3x+2(1-x)= | | x+(x-4)/2=81 | | 1/7x^2-3=4 | | 3x+(1-x)= | | -4(x-8)-4=28 | | -3x-(1-x)-2= | | 72+y=3 | | 9X+6=-8+7x+18 | | .96y-.79=.21+.46 | | 30-2m=18 |