16а-7(а+5) = 16a - 7a - 35 = 9a - 35

14а-3(8-а) = 14a - 24 + 3a = 17a - 24

6х+(2,4-х)-(1,4-5х) = 6x + 2.4 - x - 1.4 + 5x = 10x + 1

Therefore, the simplified expression is:

9a - 35 + 17a - 24 + 10x + 1

Combining like terms:

26a - 59 + 10x + 1

Final simplified expression:

26a + 10x - 58