Ответ:

2(11х - 5) - 17х = 55

22х - 10 -17х = 55

22х - 17х = 55 + 10

5х = 65

х =  65/5

х = 13

5(8х + 3) - 12 = 83

40х + 15 - 12 = 83

40х = 83 - 15 + 12

40х = 80

х= 80/40

х=2

7(2х + 9) + 3х = 114

14х + 63 + 3х = 114

17х = 114 - 63

17х = 51

х = 51/17

х = 3

3(4х + 13) - 25 = 74

12х + 39 - 25 = 74

12х = 74 - 39 + 25

12х = 60

х = 60/12

х = 5

Пошаговое объяснение: