№2. Реши уравнения. 3 1 x - 2-- + 5-- = 7 11 11

x - 2 3/11 + 5 1/11 = 7

2 3/11 = (2 × 11 + 3) / 11 = 25/11

5 1/11 = (5 × 11 + 1) / 11 = 56/11

x - 25/11 + 56/11 = 7

x + 31/11 = 7

x = 7 - 31/11

x = (7 × 11 - 31) / 11

x = (77 - 31) / 11

x = 46/11

Ответ: x = 46/11