| 1 | ÷ | 2 | × | 2100 | x | = | 29 5 | × | 6710 | ( | 1690 | − | x | ) |
| 方程左边 = | 1050 | x |
| 1050 | x | = | 29 5 | × | 6710 | ( | 1690 | − | x | ) |
| 方程右边 = | 38918 | ( | 1690 | − | x | ) |
| 1050 | x | = | 38918 | ( | 1690 | − | x | ) |
| 方程右边 = | 38918 | × | 1690 | − | 38918 | x |
| = | 65771420 | − | 38918 | x |
| 1050 | x | = | 65771420 | − | 38918 | x |
| 1050 | x | + | 38918 | x | = | 65771420 |
| 39968 | x | = | 65771420 |
| x | = | 65771420 | ÷ | 39968 |
| = | 65771420 | × | 1 39968 |
| = | 16442855 | × | 1 9992 |
| x | = | 16442855 9992 |
| x | = | 1645.601982 |