| ( | 1299207 50 | − | X | ÷ | 101 100 | × | 1 100 | ) | × | 28 25 | = | 15734839 50 | − | X |
| 方程左边 = | 1299207 50 | × | 28 25 | − | X | ÷ | 101 100 | × | 1 100 | × | 28 25 |
| = | 18188898 625 | − | X | × | 28 2525 |
18188898 625 | − | 28 2525 | X | = | 15734839 50 | − | X |
| - | 28 2525 | X | + | X | = | 15734839 50 | − | 18188898 625 |
| - | - | 2497 2525 | X | = | 15734839 50 | − | 18188898 625 |
| - | - | 2497 2525 | X | = | 356993179 1250 |
| - | 356993179 1250 | = | - | 2497 2525 | X |
| - | 2497 2525 | X | = | - | 356993179 1250 |
| X | = | 356993179 1250 | ÷ | 2497 2525 |
| = | 356993179 1250 | × | 2525 2497 |
| = | 356993179 50 | × | 101 2497 |
| X | = | 36056311079 124850 |