| ( | 26127 1000 | + | x | ) | × | 47 20 | = | 26127 500 | + | 69681 1000 | − | x |
| 方程左边 = | 26127 1000 | × | 47 20 | + | x | × | 47 20 |
| = | 1227969 20000 | + | x | × | 47 20 |
1227969 20000 | + | 47 20 | x | = | 26127 500 | + | 69681 1000 | − | x |
| 方程右边 = | 24387 200 | − | x |
1227969 20000 | + | 47 20 | x | = | 24387 200 | − | x |
47 20 | x | + | x | = | 24387 200 | − | 1227969 20000 |
67 20 | x | = | 24387 200 | − | 1227969 20000 |
67 20 | x | = | 1210731 20000 |
| x | = | 1210731 20000 | ÷ | 67 20 |
| = | 1210731 20000 | × | 20 67 |
| = | 1210731 1000 | × | 1 67 |
| x | = | 1210731 67000 |
| x | = | 18.070612 |