Решение уравнений
- 100 + x = 370
x = 370 - 100
x = 270
- x + 330 = 500
x = 500 - 330
x = 170
- 1 × x = 270
x = 270
- x - 270 = 630
x = 630 + 270
x = 900
- 400 - x = 130
x = 400 - 130
x = 270
- 270 × x = 0
x = 0 / 270
x = 0
Ответ: x = 270 в уравнениях: 100 + x = 370; 1 \times x = 270; 400 - x = 130