| X | ÷ | 113 100 | × | 13 100 | + | ( | 10000 | − | X | ) | ÷ | 103 100 | × | 3 100 | = | 82569 100 |
| 方程左边 = | X | × | 13 113 | + | ( | 10000 | − | X | ) | × | 3 103 |
13 113 | X | + | ( | 10000 | − | X | ) | × | 3 103 | = | 82569 100 |
| 方程左边 = | 13 113 | X | + | 10000 | × | 3 103 | − | X | × | 3 103 |
| = | 13 113 | X | + | 30000 103 | − | X | × | 3 103 |
| = | 1000 11639 | X | + | 30000 103 |
1000 11639 | X | + | 30000 103 | = | 82569 100 |
1000 11639 | X | = | 82569 100 | − | 30000 103 |
1000 11639 | X | = | 5504607 10300 |
| X | = | 5504607 10300 | ÷ | 1000 11639 |
| = | 5504607 10300 | × | 11639 1000 |
| X | = | 64068120873 10300000 |