| ( | x | + | 6897713 20 | − | 45000 | ) | × | 1 5 | − | 16920 | = | x | + | 4298277 100 |
| 方程左边 = | x | × | 1 5 | + | 6897713 20 | × | 1 5 | − | 45000 | × | 1 5 | − | 16920 |
| = | x | × | 1 5 | + | 6897713 100 | − | 9000 | − | 16920 |
| = | 1 5 | x | + | 4305713 100 |
1 5 | x | + | 4305713 100 | = | x | + | 4298277 100 |
1 5 | x | − | x | = | 4298277 100 | − | 4305713 100 |
| - | 4 5 | x | = | 4298277 100 | − | 4305713 100 |
| - | 4 5 | x | = | - | 1859 25 |
1859 25 | = | 4 5 | x |
4 5 | x | = | 1859 25 |
| x | = | 1859 25 | ÷ | 4 5 |
| = | 1859 25 | × | 5 4 |
| = | 1859 5 | × | 1 4 |
| x | = | 1859 20 |
| x | = | 92.95 |