119. Решите уравнение:

Решение:

1. 8 (x - 13) = 48
   • x - 13 = 48 : 8
   • x - 13 = 6
   • x = 6 + 13
   • x = 19
2. 18 (x + 14) = 378
   • x + 14 = 378 : 18
   • x + 14 = 21
   • x = 21 - 14
   • x = 7
3. 16 (4x - 26) = 224
   • 4x - 26 = 224 : 16
   • 4x - 26 = 14
   • 4x = 14 + 26
   • 4x = 40
   • x = 40 : 4
   • x = 10
4. 9 (152 - 7x) = 927
   • 152 - 7x = 927 : 9
   • 152 - 7x = 103
   • -7x = 103 - 152
   • -7x = -49
   • x = -49 : -7
   • x = 7

Ответ: 1) 19; 2) 7; 3) 10; 4) 7