| ( | 331 250 | − | x | ) | ÷ | ( | 80 | − | 46129 1000 | ) | = | ( | x | − | 263 200 | ) | ÷ | 6129 1000 |
| 方程两边同时乘以: | ( | 80 | − | 46129 1000 | ) |
| ( | 331 250 | − | x | ) | = | ( | x | − | 263 200 | ) | ÷ | 6129 1000 | × | ( | 80 | − | 46129 1000 | ) |
331 250 | − | x | = | ( | x | − | 263 200 | ) | ÷ | 6129 1000 | × | ( | 80 | − | 46129 1000 | ) |
331 250 | − | x | = | x | ÷ | 6129 1000 | × | ( | 80 | − | 46129 1000 | ) | − | 263 200 | ÷ | 6129 1000 | × | ( | 80 | − | 46129 1000 | ) |
331 250 | − | x | = | x | × | 1000 6129 | ( | 80 | − | 46129 1000 | ) | − | 1315 6129 | ( | 80 | − | 46129 1000 | ) |
331 250 | − | x | = | x | × | 1000 6129 | × | 80 | − | x | × | 1000 6129 | × | 46129 1000 | − | 1315 6129 | ( | 80 | − | 46129 1000 | ) |
331 250 | − | x | = | x | × | 80000 6129 | − | x | × | 46129 6129 | − | 1315 6129 | ( | 80 | − | 46129 1000 | ) |
331 250 | − | x | = | 33871 6129 | x | − | 1315 6129 | ( | 80 | − | 46129 1000 | ) |
331 250 | − | x | = | 33871 6129 | x | − | 1315 6129 | × | 80 | + | 1315 6129 | × | 46129 1000 |
331 250 | − | x | = | 33871 6129 | x | − | 105200 6129 | + | 12131927 1225800 |