| x | = | 1 | ÷ | ( | 4157 500 | × | 1273 | ) | − | 1 | ÷ | ( | 4157 500 | × | 773 | ) |
| 方程两边同时乘以: | ( | 4157 500 | × | 1273 | ) |
| x | ( | 4157 500 | × | 1273 | ) | = | 1 | − | 1 | ÷ | ( | 4157 500 | × | 773 | ) | × | ( | 4157 500 | × | 1273 | ) |
| x | × | 4157 500 | × | 1273 | = | 1 | − | 1 | ÷ | ( | 4157 500 | × | 773 | ) | × | ( | 4157 500 | × | 1273 | ) |
| x | × | 4157 500 | × | 1273 | = | 1 | − | 1 | ÷ | ( | 4157 500 | × | 773 | ) | × | 4157 500 | × | 1273 |
| x | × | 5291861 500 | = | 1 | − | 5291861 500 | ÷ | ( | 4157 500 | × | 773 | ) |
| 方程两边同时乘以: | ( | 4157 500 | × | 773 | ) |
5291861 500 | x | ( | 4157 500 | × | 773 | ) | = | 1 | ( | 4157 500 | × | 773 | ) | − | 5291861 500 |
5291861 500 | x | × | 4157 500 | × | 773 | = | 1 | ( | 4157 500 | × | 773 | ) | − | 5291861 500 |
5291861 500 | x | × | 4157 500 | × | 773 | = | 1 | × | 4157 500 | × | 773 | − | 5291861 500 |