| ( | 331 250 | − | x | ) | ÷ | ( | 80 | − | 46129 1000 | ) | = | 6129 1000 | ÷ | ( | x | − | 263 200 | ) |
| 方程两边同时乘以: | ( | 80 | − | 46129 1000 | ) | , | ( | x | − | 263 200 | ) |
| ( | 331 250 | − | x | ) | ( | x | − | 263 200 | ) | = | 6129 1000 | ( | 80 | − | 46129 1000 | ) |
331 250 | ( | x | − | 263 200 | ) | − | x | ( | x | − | 263 200 | ) | = | 6129 1000 | ( | 80 | − | 46129 1000 | ) |
331 250 | ( | x | − | 263 200 | ) | − | x | ( | x | − | 263 200 | ) | = | 6129 1000 | × | 80 | − | 6129 1000 | × | 46129 1000 |
331 250 | ( | x | − | 263 200 | ) | − | x | ( | x | − | 263 200 | ) | = | 12258 25 | − | 282724641 1000000 |
331 250 | ( | x | − | 263 200 | ) | − | x | ( | x | − | 263 200 | ) | = | 207595359 1000000 |
331 250 | x | − | 331 250 | × | 263 200 | − | x | ( | x | − | 263 200 | ) | = | 207595359 1000000 |
331 250 | x | − | 87053 50000 | − | x | ( | x | − | 263 200 | ) | = | 207595359 1000000 |
331 250 | x | − | 87053 50000 | − | x | x | + | x | × | 263 200 | = | 207595359 1000000 |
2639 1000 | x | − | 87053 50000 | − | x | x | = | 207595359 1000000 |