-1/3 ( 2/5 + 3/4 x ) - 1/2 = 2/3 ( x - 1/2 )

-1/3(2/5+3/4x) - 1/2= 2/3 (x - 1/2)
-2/15-1/4x-1/2=2/3x-1/3
-19/30-1/4x=2/3x-1/3
-38/60-15/60x=40/60x-20/60
-40/60x-15/50x=38/60-20/60
-55/60x=18/60
-55x=18
x =55/18
x =0.327273