| x | ÷ | ( | 13 | ÷ | 100 | ) | = | 5449813 100 | − | x |
| 方程两边同时乘以: | ( | 13 | ÷ | 100 | ) |
| x | = | 5449813 100 | ( | 13 | ÷ | 100 | ) | − | x | ( | 13 | ÷ | 100 | ) |
| x | = | 5449813 100 | × | 13 | ÷ | 100 | − | x | ( | 13 | ÷ | 100 | ) |
| x | = | 70847569 10000 | − | x | ( | 13 | ÷ | 100 | ) |
| x | = | 70847569 10000 | − | x | × | 13 | ÷ | 100 |
| x | = | 70847569 10000 | − | x | × | 13 100 |
| x | + | 13 100 | x | = | 70847569 10000 |
113 100 | x | = | 70847569 10000 |
| x | = | 70847569 10000 | ÷ | 113 100 |
| = | 70847569 10000 | × | 100 113 |
| = | 70847569 100 | × | 1 113 |
| x | = | 70847569 11300 |
| x | = | 6269.696372 |