| 1 | − | 21971 10000 | x | = | 3 5 | − | 3 10 | × | 21971 10000 | x |
| 方程右边 = | 3 5 | − | 65913 100000 | x |
| 1 | − | 21971 10000 | x | = | 3 5 | − | 65913 100000 | x |
| - | 21971 10000 | x | + | 65913 100000 | x | = | 3 5 | − | 1 |
| - | 153797 100000 | x | = | 3 5 | − | 1 |
| - | 153797 100000 | x | = | - | 2 5 |
2 5 | = | 153797 100000 | x |
153797 100000 | x | = | 2 5 |
| x | = | 2 5 | ÷ | 153797 100000 |
| = | 2 5 | × | 100000 153797 |
| = | 2 | × | 20000 153797 |
| x | = | 40000 153797 |
| x | = | 0.260083 |