Question 87644
a+4/2 = a+4/a => 1/2 = 1/a => a = 2

64)4w-1/3w+6 - w-1/3      =  w-1/w+2
   4w-1/3(w+2)- w-1/3     =  w-1/w+2
   4w-1-(w+2)(w-1)/3(w+2) = w-1/w+2
   4w-1-w^2-w+2/3         =  w-1
   -w^2+3w+1              = 3w-3
   -w^2                   = -4
    w^2                   =  4
    w  =  \/4  =>  w = 2, w=-2