| 10 | ÷ | 115 | + | 6 | ÷ | 447 10 | + | 9 | ÷ | 226 5 | + | X | ÷ | 1000 | + | ( | 306 5 | − | X | ) | ÷ | 255 2 | = | 3 5 |
| 方程左边 = | 2 23 | + | 20 149 | + | 45 226 | + | X | × | 1 1000 | + | ( | 306 5 | − | X | ) | × | 2 255 |
| = | 325523 774502 | + | 1 1000 | X | + | ( | 306 5 | − | X | ) | × | 2 255 |
325523 774502 | + | 1 1000 | X | + | ( | 306 5 | − | X | ) | × | 2 255 | = | 3 5 |
| 方程左边 = | 325523 774502 | + | 1 1000 | X | + | 306 5 | × | 2 255 | − | X | × | 2 255 |
| = | 325523 774502 | + | 1 1000 | X | + | 12 25 | − | X | × | 2 255 |
| = | 17432099 19362550 | − | 349 51000 | X |
17432099 19362550 | − | 349 51000 | X | = | 3 5 |
| - | 349 51000 | X | = | 3 5 | − | 17432099 19362550 |
| - | 349 51000 | X | = | - | 5814569 19362550 |
5814569 19362550 | = | 349 51000 | X |
349 51000 | X | = | 5814569 19362550 |
| X | = | 5814569 19362550 | ÷ | 349 51000 |
| = | 5814569 19362550 | × | 51000 349 |
| = | 5814569 387251 | × | 1020 349 |
| X | = | 5930860380 135150599 |
| X | = | 43.883345 |