| ( | 13163 500 | + | x | ) | × | 39 20 | = | 13163 250 | + | 35639 500 | − | x |
| 方程左边 = | 13163 500 | × | 39 20 | + | x | × | 39 20 |
| = | 513357 10000 | + | x | × | 39 20 |
513357 10000 | + | 39 20 | x | = | 13163 250 | + | 35639 500 | − | x |
| 方程右边 = | 12393 100 | − | x |
513357 10000 | + | 39 20 | x | = | 12393 100 | − | x |
39 20 | x | + | x | = | 12393 100 | − | 513357 10000 |
59 20 | x | = | 12393 100 | − | 513357 10000 |
59 20 | x | = | 725943 10000 |
| x | = | 725943 10000 | ÷ | 59 20 |
| = | 725943 10000 | × | 20 59 |
| = | 725943 500 | × | 1 59 |
| x | = | 725943 29500 |
| x | = | 24.608237 |