| ( | x | ÷ | 13 5 | ) | ÷ | ( | x | ÷ | 13 5 | + | 33 10 | ÷ | 127 100 | ) | = | 1 200 |
| 方程两边同时乘以: | ( | x | ÷ | 13 5 | + | 33 10 | ÷ | 127 100 | ) |
| ( | x | ÷ | 13 5 | ) | = | 1 200 | ( | x | ÷ | 13 5 | + | 33 10 | ÷ | 127 100 | ) |
| x | ÷ | 13 5 | = | 1 200 | ( | x | ÷ | 13 5 | + | 33 10 | ÷ | 127 100 | ) |
| x | ÷ | 13 5 | = | 1 200 | x | ÷ | 13 5 | + | 1 200 | × | 33 10 | ÷ | 127 100 |
| x | × | 5 13 | = | 1 520 | x | + | 33 2540 |
5 13 | x | − | 1 520 | x | = | 33 2540 |
199 520 | x | = | 33 2540 |
| x | = | 33 2540 | ÷ | 199 520 |
| = | 33 2540 | × | 520 199 |
| = | 33 127 | × | 26 199 |
| x | = | 858 25273 |
| x | = | 0.033949 |