Решение уравнения 226:
- x + 3,82 = 7
x = 7 - 3,82
x = 3,18
- 28,9 – x = 5,347
x = 28,9 - 5,347
x = 23,553
- x – 23,427 = 6,873
x = 6,873 + 23,427
x = 30,3
- (81 – x) + 27,8 = 39,156
81 - x = 39,156 - 27,8
81 - x = 11,356
x = 81 - 11,356
x = 69,644
Ответ: 1) x = 3,18; 2) x = 23,553; 3) x = 30,3; 4) x = 69,644.