To solve this expression, follow the order of operations (PEMDAS) which stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).

First, let's simplify the multiplication and division within the expression:

5, 8 - (3/7) 2, 2 (-2 1/3)
= 5, 8 - (3/7) 2, 2 (-7/3)
= 5, 8 - 6, 4 * (-7/3)
= 5, 8 - (-8, 8)
= 5, 8 + 8, 8
= 14, 6

Therefore, the expression simplifies to 14,6.