| X | ÷ | 1000 | + | ( | 73 | − | X | ) | ÷ | 200 | + | 6 | ÷ | 451 10 | + | 5 | ÷ | 447 10 | + | 10 | ÷ | 102 | = | 283 500 |
| 方程左边 = | X | × | 1 1000 | + | ( | 73 | − | X | ) | × | 1 200 | + | 60 451 | + | 50 447 | + | 5 51 |
| = | 1 1000 | X | + | ( | 73 | − | X | ) | × | 1 200 | + | 1175285 3427149 |
1 1000 | X | + | ( | 73 | − | X | ) | × | 1 200 | + | 1175285 3427149 | = | 283 500 |
| 方程左边 = | 1 1000 | X | + | 73 | × | 1 200 | − | X | × | 1 200 | + | 1175285 3427149 |
| = | 1 1000 | X | + | 73 200 | − | X | × | 1 200 | + | 1175285 3427149 |
| = | - | 1 250 | X | + | 485238877 685429800 |
| - | 1 250 | X | + | 485238877 685429800 | = | 283 500 |
| - | 1 250 | X | = | 283 500 | − | 485238877 685429800 |