| 25220 | − | ( | 25220 | ÷ | 113 100 | × | 13 100 | − | x | ÷ | 113 100 | × | 13 100 | ) | × | 28 25 | − | ( | 25220 | ÷ | 113 100 | + | x | ÷ | 113 100 | ) | × | 3 10000 | − | ( | 25220 | ÷ | 113 100 | − | x | ÷ | 113 100 | ) | × | 1 20 | = | x |
| 方程左边 = | 25220 | − | 25220 | ÷ | 113 100 | × | 13 100 | × | 28 25 | + | x | ÷ | 113 100 | × | 13 100 | × | 28 25 | − | ( | 25220 | ÷ | 113 100 | + | x | ÷ | 113 100 | ) | × | 3 10000 | − | ( | 25220 | ÷ | 113 100 | − | x | ÷ | 113 100 | ) |
| = | 25220 | − | 1836016 565 | + | x | × | 364 2825 | − | ( | 25220 | ÷ | 113 100 | + | x | ÷ | 113 100 | ) | × | 3 10000 | − | ( | 25220 | ÷ | 113 100 | − | x | ÷ | 113 100 | ) | × | 1 20 |
| = | 12413284 565 | + | 364 2825 | x | − | ( | 25220 | ÷ | 113 100 | + | x | ÷ | 113 100 | ) | × | 3 10000 | − | ( | 25220 | ÷ | 113 100 | − | x | ÷ | 113 100 | ) | × | 1 20 |
| = | 12413284 565 | + | 364 2825 | x | − | 25220 | ÷ | 113 100 | × | 3 10000 | − | x | ÷ | 113 100 | × | 3 10000 | − | ( | 25220 | ÷ | 113 100 | − | x | ÷ | 113 100 | ) | × | 1 20 |
| = | 12413284 565 | + | 364 2825 | x | − | 3783 565 | − | x | × | 3 11300 | − | ( | 25220 | ÷ | 113 100 | − | x | ÷ | 113 100 | ) | × | 1 20 |
| = | 12409501 565 | + | 1453 11300 | x | − | ( | 25220 | ÷ | 113 100 | − | x | ÷ | 113 100 | ) | × | 1 20 |
| = | 12409501 565 | + | 1453 11300 | x | − | 25220 | ÷ | 113 100 | × | 1 20 | + | x | ÷ | 113 100 | × | 1 20 |
| = | 12409501 565 | + | 1453 11300 | x | − | 126100 113 | + | x | × | 5 113 |
| = | 11779001 565 | + | 1953 11300 | x |
11779001 565 | + | 1953 11300 | x | = | x |
1953 11300 | x | − | x | = | - | 11779001 565 |
| - | 9347 11300 | x | = | - | 11779001 565 |
11779001 565 | = | 9347 11300 | x |
9347 11300 | x | = | 11779001 565 |
| x | = | 11779001 565 | ÷ | 9347 11300 |
| = | 11779001 565 | × | 11300 9347 |
| = | 906077 113 | × | 2260 719 |
| x | = | 2047734020 81247 |
| x | = | 18121540 719 |
| x | = | 25203.810848 |