| ( | x | + | 6897713 20 | − | 45000 | ) | × | 1 4 | − | 31920 | = | x | + | 4298277 100 |
| 方程左边 = | x | × | 1 4 | + | 6897713 20 | × | 1 4 | − | 45000 | × | 1 4 | − | 31920 |
| = | x | × | 1 4 | + | 6897713 80 | − | 11250 | − | 31920 |
| = | 1 4 | x | + | 3444113 80 |
1 4 | x | + | 3444113 80 | = | x | + | 4298277 100 |
1 4 | x | − | x | = | 4298277 100 | − | 3444113 80 |
| - | 3 4 | x | = | 4298277 100 | − | 3444113 80 |
| - | 3 4 | x | = | - | 27457 400 |
27457 400 | = | 3 4 | x |
3 4 | x | = | 27457 400 |
| x | = | 27457 400 | ÷ | 3 4 |
| = | 27457 400 | × | 4 3 |
| = | 27457 100 | × | 1 3 |
| x | = | 27457 300 |
| x | = | 91.523333 |