solve for x (8 2/5 + 7 2/3) + 4 1/3 = x + 13
A. 6 2/5
B. 7 2/5
C. 8 2/5
D. 16 3/5
A. 6 2/5
B. 7 2/5
C. 8 2/5
D. 16 3/5