| ( | 3472 125 | + | x | ) | × | 59 20 | = | 6944 125 | + | 9641 125 | − | x |
| 方程左边 = | 3472 125 | × | 59 20 | + | x | × | 59 20 |
| = | 51212 625 | + | x | × | 59 20 |
51212 625 | + | 59 20 | x | = | 6944 125 | + | 9641 125 | − | x |
| 方程右边 = | 3317 25 | − | x |
51212 625 | + | 59 20 | x | = | 3317 25 | − | x |
59 20 | x | + | x | = | 3317 25 | − | 51212 625 |
79 20 | x | = | 3317 25 | − | 51212 625 |
79 20 | x | = | 31713 625 |
| x | = | 31713 625 | ÷ | 79 20 |
| = | 31713 625 | × | 20 79 |
| = | 31713 125 | × | 4 79 |
| x | = | 126852 9875 |
| x | = | 12.845772 |