| ( | 3306 125 | + | x | ) | × | 43 20 | = | 10579 200 | + | 71143 1000 | − | x |
| 方程左边 = | 3306 125 | × | 43 20 | + | x | × | 43 20 |
| = | 71079 1250 | + | x | × | 43 20 |
71079 1250 | + | 43 20 | x | = | 10579 200 | + | 71143 1000 | − | x |
| 方程右边 = | 62019 500 | − | x |
71079 1250 | + | 43 20 | x | = | 62019 500 | − | x |
43 20 | x | + | x | = | 62019 500 | − | 71079 1250 |
63 20 | x | = | 62019 500 | − | 71079 1250 |
63 20 | x | = | 167937 2500 |
| x | = | 167937 2500 | ÷ | 63 20 |
| = | 167937 2500 | × | 20 63 |
| = | 7997 125 | × | 1 3 |
| x | = | 7997 375 |
| x | = | 21.325333 |