| x | ÷ | ( | 1 50 | − | x | ) | ÷ | ( | 1 | − | 2 | x | ) | ÷ | ( | 1 | − | 2 | x | ) | = | 11000000 |
| 方程两边同时乘以: | ( | 1 50 | − | x | ) |
| x | ÷ | ( | 1 | − | 2 | x | ) | ÷ | ( | 1 | − | 2 | x | ) | = | 11000000 | ( | 1 50 | − | x | ) |
| x | ÷ | ( | 1 | − | 2 | x | ) | ÷ | ( | 1 | − | 2 | x | ) | = | 11000000 | × | 1 50 | − | 11000000 | x |
| x | ÷ | ( | 1 | − | 2 | x | ) | ÷ | ( | 1 | − | 2 | x | ) | = | 220000 | − | 11000000 | x |
| 方程两边同时乘以: | ( | 1 | − | 2 | x | ) |
| x | ÷ | ( | 1 | − | 2 | x | ) | = | 220000 | ( | 1 | − | 2 | x | ) | − | 11000000 | x | ( | 1 | − | 2 | x | ) |
| x | ÷ | ( | 1 | − | 2 | x | ) | = | 220000 | × | 1 | − | 220000 | × | 2 | x | − | 11000000 | x | ( | 1 | − | 2 | x | ) |
| x | ÷ | ( | 1 | − | 2 | x | ) | = | 220000 | − | 440000 | x | − | 11000000 | x | ( | 1 | − | 2 | x | ) |
| 方程两边同时乘以: | ( | 1 | − | 2 | x | ) |
| x | = | 220000 | ( | 1 | − | 2 | x | ) | − | 440000 | x | ( | 1 | − | 2 | x | ) | − | 11000000 | x | ( | 1 | − | 2 | x | ) | ( | 1 | − | 2 | x | ) |
| x | = | 220000 | × | 1 | − | 220000 | × | 2 | x | − | 440000 | x | ( | 1 | − | 2 | x | ) | − | 11000000 | x | ( | 1 | − | 2 | x | ) | ( | 1 | − | 2 | x | ) |
| x | = | 220000 | − | 440000 | x | − | 440000 | x | ( | 1 | − | 2 | x | ) | − | 11000000 | x | ( | 1 | − | 2 | x | ) | ( | 1 | − | 2 | x | ) |
| x | = | 220000 | − | 440000 | x | − | 440000 | x | × | 1 | + | 440000 | x | × | 2 | x | − | 11000000 | x |
| x | = | 220000 | − | 440000 | x | − | 440000 | x | + | 880000 | x | x | − | 11000000 | x | ( | 1 | − | 2 | x | ) | ( | 1 | − | 2 | x | ) |
| x | = | 220000 | − | 880000 | x | + | 880000 | x | x | − | 11000000 | x | ( | 1 | − | 2 | x | ) | ( | 1 | − | 2 | x | ) |
| x | = | 220000 | − | 880000 | x | + | 880000 | x | x | − | 11000000 | x | × | 1 | ( | 1 | − | 2 | x | ) | + | 11000000 | x |
| x | = | 220000 | − | 880000 | x | + | 880000 | x | x | − | 11000000 | x | ( | 1 | − | 2 | x | ) | + | 22000000 | x | x |
| x | = | 220000 | − | 880000 | x | + | 880000 | x | x | − | 11000000 | x | × | 1 | + | 11000000 | x | × | 2 |
| x | = | 220000 | − | 880000 | x | + | 880000 | x | x | − | 11000000 | x | + | 22000000 | x | x | + | 22000000 |
| x | = | 220000 | − | 11880000 | x | + | 880000 | x | x | + | 22000000 | x | x | + | 22000000 | x | x |
| x | = | 220000 | − | 11880000 | x | + | 880000 | x | x | + | 22000000 | x | x | + | 22000000 | x | x |
| x | = | 220000 | − | 11880000 | x | + | 880000 | x | x | + | 22000000 | x | x | + | 22000000 | x | x |