5.268 Решите уравнение: 1) (654x − 10 590) : 57 = 778; 2) (54x + 22) ⋅ 315 = 23 940.

1. (654x - 10 590) : 57 = 778

   654x - 10 590 = 778 \cdot 57

   654x - 10 590 = 44346

   654x = 44346 + 10 590

   654x = 54936

   x = 54936 : 654

   x = 84

2. (54x + 22) \cdot 315 = 23 940

   54x + 22 = 23940 : 315

   54x + 22 = 76

   54x = 76 - 22

   54x = 54

   x = 54 : 54

   x = 1

Ответ: 1) 84; 2) 1