| ( | 5463 10 | − | y | ) | ÷ | y | = | 73 1000 |
| 方程两边同时乘以: | y |
| ( | 5463 10 | − | y | ) | = | 73 1000 | y |
5463 10 | − | y | = | 73 1000 | y |
| - | y | − | 73 1000 | y | = | - | 5463 10 |
| - | 1073 1000 | y | = | - | 5463 10 |
5463 10 | = | 1073 1000 | y |
1073 1000 | y | = | 5463 10 |
| y | = | 5463 10 | ÷ | 1073 1000 |
| = | 5463 10 | × | 1000 1073 |
| = | 5463 | × | 100 1073 |
| y | = | 546300 1073 |
| y | = | 509.133271 |