Tìm x∈Z biết

Bài 2: Tìm x∈Z biết:
8) -6x – (-7) =25
9) 46 – (x – 11) = -48
10) -12(x – 5) + 7(3 – x) = 5
11) (x – 2).(x + 4) = 0
12) (x – 2).(x + 15) = 0
13) (7 – x).(x + 19) = 0
14) -5 < x < 1
15) (x – 3)(x - 5) < 0
16) 2x² - 3 = 29