1 20 | x | + | ( | 34036658 5 | − | x | ) | × | 1 10 | = | 2125079 5 |
| 方程左边 = | 1 20 | x | + | 34036658 5 | × | 1 10 | − | x | × | 1 10 |
| = | 1 20 | x | + | 17018329 25 | − | x | × | 1 10 |
| = | - | 1 20 | x | + | 17018329 25 |
| - | 1 20 | x | + | 17018329 25 | = | 2125079 5 |
| - | 1 20 | x | = | 2125079 5 | − | 17018329 25 |
| - | 1 20 | x | = | - | 6392934 25 |
6392934 25 | = | 1 20 | x |
1 20 | x | = | 6392934 25 |
| x | = | 6392934 25 | ÷ | 1 20 |
| = | 6392934 25 | × | 20 |
| = | 6392934 5 | × | 4 |
| x | = | 25571736 5 |
| x | = | 5114347.2 |