| 2 | x | ÷ | ( | 200000 | ) | ÷ | ( | 1 | + | x | ÷ | ( | 200000 | ) | ) | = | 2 25 |
| 方程两边同时乘以: | ( | 200000 | ) |
| 2 | x | ÷ | ( | 1 | + | x | ÷ | ( | 200000 | ) | ) | = | 2 25 | ( | 200000 | ) |
| 2 | x | ÷ | ( | 1 | + | x | ÷ | ( | 200000 | ) | ) | = | 2 25 | × | 200000 |
| 2 | x | ÷ | ( | 1 | + | x | ÷ | ( | 200000 | ) | ) | = | 16000 |
| 方程两边同时乘以: | ( | 1 | + | x | ÷ | ( | 200000 | ) | ) |
| 2 | x | = | 16000 | ( | 1 | + | x | ÷ | ( | 200000 | ) | ) |
| 2 | x | = | 16000 | × | 1 | + | 16000 | x | ÷ | ( | 200000 | ) |
| 2 | x | = | 16000 | + | 16000 | x | ÷ | ( | 200000 | ) |
| 方程两边同时乘以: | ( | 200000 | ) |
| 2 | x | ( | 200000 | ) | = | 16000 | ( | 200000 | ) | + | 16000 | x |
| 2 | x | × | 200000 | = | 16000 | ( | 200000 | ) | + | 16000 | x |
| 2 | x | × | 200000 | = | 16000 | × | 200000 | + | 16000 | x |
| 400000 | x | = | 3200000000 | + | 16000 | x |
| 400000 | x | − | 16000 | x | = | 3200000000 |
| 384000 | x | = | 3200000000 |
| x | = | 3200000000 | ÷ | 384000 |
| = | 3200000000 | × | 1 384000 |
| = | 25000 | × | 1 3 |
| x | = | 25000 3 |
| x | = | 8333.333333 |