| ( | 6600 | + | x | × | 53 20 | × | 9 2 | ) | × | 23 50 | − | ( | 6600 | + | ( | x | + | 100 | ) | × | 9 2 | ) | × | 81 100 | = | 0 |
| 方程左边 = | 6600 | × | 23 50 | + | x | × | 53 20 | × | 9 2 | × | 23 50 | − | ( | 6600 | + | ( | x | + | 100 | ) | × | 9 2 | ) | × | 81 100 |
| = | 3036 | + | x | × | 10971 2000 | − | ( | 6600 | + | ( | x | + | 100 | ) | × | 9 2 | ) | × | 81 100 |
| = | 3036 | + | 10971 2000 | x | − | 6600 | × | 81 100 | − | ( | x | + | 100 | ) | × | 9 2 | × | 81 100 |
| = | 3036 | + | 10971 2000 | x | − | 5346 | − | ( | x | + | 100 | ) | × | 729 200 |
| = | - | 2310 | + | 10971 2000 | x | − | ( | x | + | 100 | ) | × | 729 200 |
| = | - | 2310 | + | 10971 2000 | x | − | x | × | 729 200 | − | 100 | × | 729 200 |
| = | - | 2310 | + | 10971 2000 | x | − | x | × | 729 200 | − | 729 2 |
| = | - | 5349 2 | + | 3681 2000 | x |
| - | 5349 2 | + | 3681 2000 | x | = | 0 |
3681 2000 | x | = | 0 | + | 5349 2 |
3681 2000 | x | = | 5349 2 |
| x | = | 5349 2 | ÷ | 3681 2000 |
| = | 5349 2 | × | 2000 3681 |
| = | 1783 | × | 1000 1227 |
| x | = | 1783000 1227 |
| x | = | 1453.137734 |