| 107 | ( | x | − | 13 10 | ) | = | 7 | ( | x | + | 13 2 | ) |
| 方程左边 = | 107 | x | − | 107 | × | 13 10 |
| = | 107 | x | − | 1391 10 |
| 107 | x | − | 1391 10 | = | 7 | ( | x | + | 13 2 | ) |
| 方程右边 = | 7 | x | + | 7 | × | 13 2 |
| = | 7 | x | + | 91 2 |
| 107 | x | − | 1391 10 | = | 7 | x | + | 91 2 |
| 107 | x | − | 7 | x | = | 91 2 | + | 1391 10 |
| 100 | x | = | 91 2 | + | 1391 10 |
| 100 | x | = | 923 5 |
| x | = | 923 5 | ÷ | 100 |
| = | 923 5 | × | 1 100 |
| x | = | 923 500 |
| x | = | 1.846 |