| ( | 90267 | − | 3 2 | X | ) | × | 54 5 | ÷ | 104 5 | × | 9 10 | = | 22326 | + | 9 | X |
| 方程左边 = | ( | 90267 | − | 3 2 | X | ) | × | 243 520 |
| ( | 90267 | − | 3 2 | X | ) | × | 243 520 | = | 22326 | + | 9 | X |
| 方程左边 = | 90267 | × | 243 520 | − | 3 2 | X | × | 243 520 |
| = | 21934881 520 | − | 729 1040 | X |
21934881 520 | − | 729 1040 | X | = | 22326 | + | 9 | X |
| - | 729 1040 | X | − | 9 | X | = | 22326 | − | 21934881 520 |
| - | 10089 1040 | X | = | 22326 | − | 21934881 520 |
| - | 10089 1040 | X | = | - | 10325361 520 |
10325361 520 | = | 10089 1040 | X |
10089 1040 | X | = | 10325361 520 |
| X | = | 10325361 520 | ÷ | 10089 1040 |
| = | 10325361 520 | × | 1040 10089 |
| = | 3441787 | × | 2 3363 |
| X | = | 6883574 3363 |
| X | = | 2046.855189 |