1549 100 | x | = | 137 10 | ( | 1549 100 | − | x | ) |
| 方程右边 = | 137 10 | × | 1549 100 | − | 137 10 | x |
| = | 212213 1000 | − | 137 10 | x |
1549 100 | x | = | 212213 1000 | − | 137 10 | x |
1549 100 | x | + | 137 10 | x | = | 212213 1000 |
2919 100 | x | = | 212213 1000 |
| x | = | 212213 1000 | ÷ | 2919 100 |
| = | 212213 1000 | × | 100 2919 |
| = | 212213 10 | × | 1 2919 |
| x | = | 212213 29190 |
| x | = | 7.270058 |