669. Решите уравнения 1) 1376 / (34-x) = 86 2) 9680 / (x+219) = 16 3) (x-57) / 29=205

1) 1376 / (34 - x) = 86

34 - x = 1376 / 86

34 - x = 16

x = 34 - 16

x = 18.

Ответ: 18.

2) 9680 / (x + 219) = 16

x + 219 = 9680 / 16

x + 219 = 605

x = 605 - 219

x = 386.

Ответ: 386.

3) (x - 57) / 29 = 205

x - 57 = 205 * 29

x - 57 = 5945

x = 5945 + 57

x = 6002.

Ответ: 6002.