| ( | 6093303 6250 | − | x | ) | × | 21 20 | = | 6093303 6250 | + | 182 5 |
| 方程左边 = | 6093303 6250 | × | 21 20 | − | x | × | 21 20 |
| = | 127959363 125000 | − | x | × | 21 20 |
127959363 125000 | − | 21 20 | x | = | 6093303 6250 | + | 182 5 |
| 方程右边 = | 6320803 6250 |
127959363 125000 | − | 21 20 | x | = | 6320803 6250 |
| - | 21 20 | x | = | 6320803 6250 | − | 127959363 125000 |
| - | 21 20 | x | = | - | 1543303 125000 |
1543303 125000 | = | 21 20 | x |
21 20 | x | = | 1543303 125000 |
| x | = | 1543303 125000 | ÷ | 21 20 |
| = | 1543303 125000 | × | 20 21 |
| = | 1543303 6250 | × | 1 21 |
| x | = | 1543303 131250 |
| x | = | 11.758499 |