| ( | 26807 1000 | + | x | ) | × | 17 20 | = | 26807 500 | + | 72221 1000 | − | x |
| 方程左边 = | 26807 1000 | × | 17 20 | + | x | × | 17 20 |
| = | 455719 20000 | + | x | × | 17 20 |
455719 20000 | + | 17 20 | x | = | 26807 500 | + | 72221 1000 | − | x |
| 方程右边 = | 25167 200 | − | x |
455719 20000 | + | 17 20 | x | = | 25167 200 | − | x |
17 20 | x | + | x | = | 25167 200 | − | 455719 20000 |
37 20 | x | = | 25167 200 | − | 455719 20000 |
37 20 | x | = | 2060981 20000 |
| x | = | 2060981 20000 | ÷ | 37 20 |
| = | 2060981 20000 | × | 20 37 |
| = | 2060981 1000 | × | 1 37 |
| x | = | 2060981 37000 |
| x | = | 55.702189 |