| ( | 250000 | ÷ | 109 100 | × | 9 100 | − | x | ÷ | 103 100 | × | 3 100 | ) | × | 28 25 | + | x | = | 250000 |
| 方程左边 = | 250000 | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | x | ÷ | 103 100 | × | 3 100 | × | 28 25 | + | x |
| = | 2520000 109 | − | x | × | 84 2575 | + | x |
| = | 2520000 109 | + | 2491 2575 | x |
2520000 109 | + | 2491 2575 | x | = | 250000 |
2491 2575 | x | = | 250000 | − | 2520000 109 |
2491 2575 | x | = | 24730000 109 |
| x | = | 24730000 109 | ÷ | 2491 2575 |
| = | 24730000 109 | × | 2575 2491 |
| x | = | 63679750000 271519 |