| x | = | 6 5 | ( | 339 | ÷ | 60 | ) | × | 2 | ÷ | ( | 2 | ( | 157 50 | × | 21 50 | ) | × | 2 | ) |
| 方程两边同时乘以: | ( | 2 | ( | 157 50 | × | 21 50 | ) | × | 2 | ) |
| x | ( | 2 | ( | 157 50 | × | 21 50 | ) | × | 2 | ) | = | 6 5 | ( | 339 | ÷ | 60 | ) | × | 2 |
| x | × | 2 | ( | 157 50 | × | 21 50 | ) | × | 2 | = | 6 5 | ( | 339 | ÷ | 60 | ) | × | 2 |
| x | × | 2 | ( | 157 50 | × | 21 50 | ) | × | 2 | = | 6 5 | × | 339 | ÷ | 60 | × | 2 |
| x | × | 4 | ( | 157 50 | × | 21 50 | ) | = | 339 25 |
| x | × | 4 | × | 157 50 | × | 21 50 | = | 339 25 |
| x | × | 3297 625 | = | 339 25 |
| x | = | 339 25 | ÷ | 3297 625 |
| = | 339 25 | × | 625 3297 |
| = | 113 | × | 25 1099 |
| x | = | 2825 1099 |
| x | = | 2.570519 |