| 16 | ÷ | 4457 50 | + | 14 | ÷ | 267 2 | + | X | ÷ | 1000 | + | ( | 653 10 | − | X | ) | ÷ | 1650 | = | 43 125 |
| 方程左边 = | 800 4457 | + | 28 267 | + | X | × | 1 1000 | + | ( | 653 10 | − | X | ) | × | 1 1650 |
| = | 338396 1190019 | + | 1 1000 | X | + | ( | 653 10 | − | X | ) | × | 1 1650 |
338396 1190019 | + | 1 1000 | X | + | ( | 653 10 | − | X | ) | × | 1 1650 | = | 43 125 |
| 方程左边 = | 338396 1190019 | + | 1 1000 | X | + | 653 10 | × | 1 1650 | − | X | × | 1 1650 |
| = | 338396 1190019 | + | 1 1000 | X | + | 653 16500 | − | X | × | 1 1650 |