| 657 | = | 3518 5 | ÷ | ( | 1 | + | x | ÷ | 12 | × | 11 | ) |
| 方程两边同时乘以: | ( | 1 | + | x | ÷ | 12 | × | 11 | ) |
| 657 | ( | 1 | + | x | ÷ | 12 | × | 11 | ) | = | 3518 5 |
| 657 | × | 1 | + | 657 | x | ÷ | 12 | × | 11 | = | 3518 5 |
| 657 | + | 2409 4 | x | = | 3518 5 |
2409 4 | x | = | 3518 5 | − | 657 |
2409 4 | x | = | 233 5 |
| x | = | 233 5 | ÷ | 2409 4 |
| = | 233 5 | × | 4 2409 |
| x | = | 932 12045 |
| x | = | 0.077377 |