| ( | 4301 25 | − | X | ) | × | 1 10 | + | X | = | 561 4 |
| 方程左边 = | 4301 25 | × | 1 10 | − | X | × | 1 10 | + | X |
| = | 4301 250 | − | X | × | 1 10 | + | X |
| = | 4301 250 | + | 9 10 | X |
4301 250 | + | 9 10 | X | = | 561 4 |
9 10 | X | = | 561 4 | − | 4301 250 |
9 10 | X | = | 61523 500 |
| X | = | 61523 500 | ÷ | 9 10 |
| = | 61523 500 | × | 10 9 |
| = | 61523 50 | × | 1 9 |
| X | = | 61523 450 |
| X | = | 136.717778 |