| ( | 25343 1000 | + | x | ) | × | 47 20 | = | 50687 1000 | + | 6933 100 | − | x |
| 方程左边 = | 25343 1000 | × | 47 20 | + | x | × | 47 20 |
| = | 1191121 20000 | + | x | × | 47 20 |
1191121 20000 | + | 47 20 | x | = | 50687 1000 | + | 6933 100 | − | x |
| 方程右边 = | 120017 1000 | − | x |
1191121 20000 | + | 47 20 | x | = | 120017 1000 | − | x |
47 20 | x | + | x | = | 120017 1000 | − | 1191121 20000 |
67 20 | x | = | 120017 1000 | − | 1191121 20000 |
67 20 | x | = | 1209219 20000 |
| x | = | 1209219 20000 | ÷ | 67 20 |
| = | 1209219 20000 | × | 20 67 |
| = | 1209219 1000 | × | 1 67 |
| x | = | 1209219 67000 |
| x | = | 18.048045 |