| x | ( | ( | 1 | ÷ | 25 | ) | x | + | 1 | ) | ( | ( | 1 | ÷ | 172 5 | ) | x | + | 1 | ) | = | 50 | ( | ( | 1 | ÷ | 337 20 | ) | x | + | 1 | ) |
| 方程左边 = | x | ( | 1 | ÷ | 25 | ) | x | ( | ( | 1 | ÷ | 172 5 | ) | x | + | 1 | ) | + | x | × | 1 | ( | ( | 1 | ÷ | 172 5 | ) | x | + | 1 | ) |
| = | x | × | 1 | ÷ | 25 | × | x | ( | ( | 1 | ÷ | 172 5 | ) | x | + | 1 | ) | + | x | × | 1 | ( | ( | 1 | ÷ | 172 5 | ) | x | + | 1 | ) |
| = | x | × | 1 25 | x | ( | ( | 1 | ÷ | 172 5 | ) | x | + | 1 | ) | + | x | × | 1 | ( | ( | 1 | ÷ | 172 5 | ) | x | + | 1 | ) |
| = | x | × | 1 25 | x | ( | 1 | ÷ | 172 5 | ) | x | + | x | × | 1 25 | x | × | 1 | + | x | × | 1 | ( | ( | 1 | ÷ | 172 5 | ) | x | + | 1 | ) |
| = | x | × | 1 25 | x | ( | 1 | ÷ | 172 5 | ) | x | + | x | × | 1 25 | x | + | x | × | 1 | ( | ( | 1 | ÷ | 172 5 | ) | x | + | 1 | ) |
| = | x | × | 1 25 | x | × | 1 | ÷ | 172 5 | × | x | + | x | × | 1 25 | x | + | x | × | 1 | ( | ( | 1 | ÷ | 172 5 | ) | x | + | 1 | ) |
| = | x | × | 1 860 | x | x | + | x | × | 1 25 | x | + | x | × | 1 | ( | ( | 1 | ÷ | 172 5 | ) | x | + | 1 | ) |
| = | x | × | 1 860 | x | x | + | x | × | 1 25 | x | + | x | × | 1 | ( | 1 | ÷ | 172 5 | ) | x | + | x |
| = | x | × | 1 860 | x | x | + | x | × | 1 25 | x | + | x | × | 1 | ( | 1 | ÷ | 172 5 | ) | x | + | x |
| = | x | × | 1 860 | x | x | + | x | × | 1 25 | x | + | x | × | 1 | × | 1 | ÷ | 172 5 | × | x |
| = | x | × | 1 860 | x | x | + | x | × | 1 25 | x | + | x | × | 5 172 | x | + | 1 | x |
| x | × | 1 860 | x | x | + | x | × | 1 25 | x | + | x | × | 5 172 | x | + | 1 | x | = | 50 | ( | ( | 1 | ÷ | 337 20 | ) | x | + | 1 | ) |
| 方程右边 = | 50 | ( | 1 | ÷ | 337 20 | ) | x | + | 50 | × | 1 |
| = | 50 | ( | 1 | ÷ | 337 20 | ) | x | + | 50 |
| = | 50 | × | 1 | ÷ | 337 20 | × | x | + | 50 |
| = | 1000 337 | x | + | 50 |
| x | × | 1 860 | x | x | + | x | × | 1 25 | x | + | x | × | 5 172 | x | + | 1 | x | = | 1000 337 | x | + | 50 |