| a | ÷ | ( | 93 100 | − | a | ) | = | 369 50 | ÷ | 2657 50 |
| 方程两边同时乘以: | ( | 93 100 | − | a | ) |
| a | = | 369 50 | ÷ | 2657 50 | × | ( | 93 100 | − | a | ) |
| a | = | 369 50 | ÷ | 2657 50 | × | 93 100 | − | 369 50 | ÷ | 2657 50 | × | a |
| a | = | 34317 265700 | − | 369 2657 | a |
| a | + | 369 2657 | a | = | 34317 265700 |
3026 2657 | a | = | 34317 265700 |
| a | = | 34317 265700 | ÷ | 3026 2657 |
| = | 34317 265700 | × | 2657 3026 |
| a | = | 91180269 804008200 |
| a | = | 34317 302600 |
| a | = | 0.113407 |