12 ÷ 3,2 + (6 - ((37/8) - (15/6)) × 6)
= 3,75 + (6 - (4,625 - 2,5) 6)
= 3,75 + (6 - 2,125 6)
= 3,75 + (6 - 12,75)
= 3,75 + (-6,75)
= -3

Ответ: -3