-4(2,5(-2/9)-1,5)+5,5(-2/9)-8 = -4(-5/9 - 1,5) + (-11/9) - 8 == -4(-8,5/9) - (107/9) = 34 + (-107/9) = (306 - 107) / 9 = 199 / 9 = 22.11.
Ответ: 22.11.
-4(2,5(-2/9)-1,5)+5,5(-2/9)-8 = -4(-5/9 - 1,5) + (-11/9) - 8 =
= -4(-8,5/9) - (107/9) = 34 + (-107/9) = (306 - 107) / 9 = 199 / 9 = 22.11.
Ответ: 22.11.