assuming 2/3x = 2/(3x)...
2/3x - 1/2 = 1/3 + 5/6x
- 2/6 - 3/6 = 5/6x - 4/6x
-5/6 = 1/6x
-5x = 1
x = -1/5 <---- this is not an answer so I'll assume you meant:
assuming 2/3x = (2x)/3...
2x/3 - 1/2 = 1/3 + 5x/6
- 2/6 - 3/6 = 5x/6 - 4x/6
-5/6 = x/6
x = -5
The answer is A