| x | − | 39 2 | − | ( | x | ÷ | 113 100 | × | 13 100 | − | 39 2 | ÷ | 113 100 | × | 13 100 | ) | − | ( | x | ÷ | 113 100 | × | 13 100 | − | 39 2 | ÷ | 113 100 | × | 13 100 | ) | × | 3 25 | − | x | ÷ | 113 100 | × | 3 10000 | = | 1800 |
| 方程左边 = | x | − | 39 2 | − | ( | x | ÷ | 113 100 | × | 13 100 | − | 39 2 | ÷ | 113 100 | × | 13 100 | ) | − | ( | x | ÷ | 113 100 | × | 13 100 | − | 39 2 | ÷ | 113 100 | × | 13 100 | ) | × | 3 25 | − | x | × | 3 11300 |
| = | 11297 11300 | x | − | 39 2 | − | ( | x | ÷ | 113 100 | × | 13 100 | − | 39 2 | ÷ | 113 100 | × | 13 100 | ) | − | ( | x | ÷ | 113 100 | × | 13 100 | − | 39 2 | ÷ | 113 100 | × | 13 100 | ) | × | 3 25 |
11297 11300 | x | − | 39 2 | − | ( | x | ÷ | 113 100 | × | 13 100 | − | 39 2 | ÷ | 113 100 | × | 13 100 | ) | − | ( | x | ÷ | 113 100 | × | 13 100 | − | 39 2 | ÷ | 113 100 | × | 13 100 | ) | × | 3 25 | = | 1800 |
| 方程左边 = | 11297 11300 | x | − | 39 2 | − | x | ÷ | 113 100 | × | 13 100 | + | 39 2 | ÷ | 113 100 | × | 13 100 | − | ( | x | ÷ | 113 100 | × | 13 100 | − | 39 2 | ÷ | 113 100 | × | 13 100 | ) | × | 3 25 |
| = | 11297 11300 | x | − | 39 2 | − | x | × | 13 113 | + | 507 226 | − | ( | x | ÷ | 113 100 | × | 13 100 | − | 39 2 | ÷ | 113 100 | × | 13 100 | ) | × | 3 25 |
| = | 9997 11300 | x | − | 1950 113 | − | ( | x | ÷ | 113 100 | × | 13 100 | − | 39 2 | ÷ | 113 100 | × | 13 100 | ) | × | 3 25 |
| = | 9997 11300 | x | − | 1950 113 | − | x | ÷ | 113 100 | × | 13 100 | × | 3 25 | + | 39 2 | ÷ | 113 100 | × | 13 100 | × | 3 25 |
| = | 9997 11300 | x | − | 1950 113 | − | x | × | 39 2825 | + | 1521 5650 |
| = | 9841 11300 | x | − | 95979 5650 |
9841 11300 | x | − | 95979 5650 | = | 1800 |
9841 11300 | x | = | 1800 | + | 95979 5650 |
9841 11300 | x | = | 10265979 5650 |
| x | = | 10265979 5650 | ÷ | 9841 11300 |
| = | 10265979 5650 | × | 11300 9841 |
| = | 10265979 113 | × | 226 9841 |
| x | = | 2320111254 1112033 |
| x | = | 20531958 9841 |
| x | = | 2086.369068 |