2. Реши уравнения. (x − 25 312) + 1 247 = 3 984; x : 8 + 1 986 = 2 106.

1. \((x - 25\,312) + 1\,247 = 3\,984\)
   \(x - 25\,312 = 3\,984 - 1\,247 = 2\,737\)
   \(x = 2\,737 + 25\,312 = 28\,049\).
2. \(x : 8 + 1\,986 = 2\,106\)
   \(x : 8 = 2\,106 - 1\,986 = 120\)
   \(x = 120 \cdot 8 = 960\).

Ответ: 1) x = 28 049; 2) x = 960.