| x | ÷ | 7 | + | 6 | + | x | ÷ | 5 | + | 3 | + | x | ÷ | 3 | + | 2 | = | x | × | 7 | + | 6 | + | x | × | 5 | + | 3 | + | x | × | 3 | + | 2 |
| 方程左边 = | 71 105 | x | + | 11 |
71 105 | x | + | 11 | = | x | × | 7 | + | 6 | + | x | × | 5 | + | 3 | + | x | × | 3 | + | 2 |
| 方程右边 = | 15 | x | + | 11 |
71 105 | x | + | 11 | = | 15 | x | + | 11 |
71 105 | x | − | 15 | x | = | 11 | − | 11 |
| - | 1504 105 | x | = | 11 | − | 11 |
| - | 1504 105 | x | = | 0 |
| - | 0 | = | 1504 105 | x |
1504 105 | x | = | - | 0 |
| x | = | - | 0 | ÷ | 1504 105 |
| = | - | 0 | × | 105 1504 |
| x | = | 0 |