| ( | x | − | 2 25 | ) | ÷ | ( | - | 1 100 | ) | = | 7179 2000 | ÷ | 3237 400 |
| 方程两边同时乘以: | ( | - | 1 100 | ) |
| ( | x | − | 2 25 | ) | = | 7179 2000 | ÷ | 3237 400 | × | ( | - | 1 100 | ) |
| x | − | 2 25 | = | 7179 2000 | ÷ | 3237 400 | × | ( | - | 1 100 | ) |
| x | − | 2 25 | = | - | 7179 2000 | ÷ | 3237 400 | × | 1 100 |
| x | − | 2 25 | = | - | 2393 539500 |
| x | = | - | 2393 539500 | + | 2 25 |
| x | = | 40767 539500 |