| ( | 25343 1000 | + | x | ) | × | 17 20 | = | 50687 1000 | + | 6983 100 | − | x |
| 方程左边 = | 25343 1000 | × | 17 20 | + | x | × | 17 20 |
| = | 430831 20000 | + | x | × | 17 20 |
430831 20000 | + | 17 20 | x | = | 50687 1000 | + | 6983 100 | − | x |
| 方程右边 = | 120517 1000 | − | x |
430831 20000 | + | 17 20 | x | = | 120517 1000 | − | x |
17 20 | x | + | x | = | 120517 1000 | − | 430831 20000 |
37 20 | x | = | 120517 1000 | − | 430831 20000 |
37 20 | x | = | 1979509 20000 |
| x | = | 1979509 20000 | ÷ | 37 20 |
| = | 1979509 20000 | × | 20 37 |
| = | 1979509 1000 | × | 1 37 |
| x | = | 1979509 37000 |
| x | = | 53.500243 |