| 1 | ÷ | 2 | × | ( | x | ÷ | 19414 5 | + | 19414 5 | ÷ | 301179 100 | ) | = | 7 20 |
| 方程左边 = | 1 2 | ( | x | ÷ | 19414 5 | + | 19414 5 | ÷ | 301179 100 | ) |
1 2 | ( | x | ÷ | 19414 5 | + | 19414 5 | ÷ | 301179 100 | ) | = | 7 20 |
| 方程左边 = | 1 2 | x | ÷ | 19414 5 | + | 1 2 | × | 19414 5 | ÷ | 301179 100 |
| = | 5 38828 | x | + | 194140 301179 |
5 38828 | x | + | 194140 301179 | = | 7 20 |
5 38828 | x | = | 7 20 | − | 194140 301179 |
5 38828 | x | = | - | 1774547 6023580 |
| x | = | - | 1774547 6023580 | ÷ | 5 38828 |
| = | - | 1774547 6023580 | × | 38828 5 |
| = | - | 1774547 1505895 | × | 9707 5 |
| x | = | - | 17225527729 7529475 |