| ( | 3306 125 | + | x | ) | × | 31 20 | = | 10579 200 | + | 71143 1000 | − | x |
| 方程左边 = | 3306 125 | × | 31 20 | + | x | × | 31 20 |
| = | 51243 1250 | + | x | × | 31 20 |
51243 1250 | + | 31 20 | x | = | 10579 200 | + | 71143 1000 | − | x |
| 方程右边 = | 62019 500 | − | x |
51243 1250 | + | 31 20 | x | = | 62019 500 | − | x |
31 20 | x | + | x | = | 62019 500 | − | 51243 1250 |
51 20 | x | = | 62019 500 | − | 51243 1250 |
51 20 | x | = | 207609 2500 |
| x | = | 207609 2500 | ÷ | 51 20 |
| = | 207609 2500 | × | 20 51 |
| = | 69203 125 | × | 1 17 |
| x | = | 69203 2125 |
| x | = | 32.566118 |