| ( | ( | x | − | x | ÷ | 113 100 | × | 13 100 | ) | + | 1 20 | ) | ÷ | 713 100 | = | 4 5 |
| 方程左边 = | ( | x | − | x | ÷ | 113 100 | × | 13 100 | ) | × | 100 713 | + | 1 20 | × | 100 713 |
| = | ( | x | − | x | ÷ | 113 100 | × | 13 100 | ) | × | 100 713 | + | 5 713 |
| = | x | × | 100 713 | − | x | ÷ | 113 100 | × | 13 100 | × | 100 713 | + | 5 713 |
| = | x | × | 100 713 | − | x | × | 1300 80569 | + | 5 713 |
| = | 10000 80569 | x | + | 5 713 |
10000 80569 | x | + | 5 713 | = | 4 5 |
10000 80569 | x | = | 4 5 | − | 5 713 |
10000 80569 | x | = | 2827 3565 |
| x | = | 2827 3565 | ÷ | 10000 80569 |
| = | 2827 3565 | × | 80569 10000 |
| = | 2827 155 | × | 3503 10000 |
| x | = | 9902981 1550000 |
| x | = | 319451 50000 |
| x | = | 6.38902 |