| X | = | 679 | + | 679 50 | + | 1 100 | X | + | 31 2 | + | 1 5000 | X | + | 177 5 | + | 1 2000 | X | + | 269 5000 | X |
| 方程右边 = | 18587 25 | + | 129 2000 | X |
| X | = | 18587 25 | + | 129 2000 | X |
| X | − | 129 2000 | X | = | 18587 25 |
1871 2000 | X | = | 18587 25 |
| X | = | 18587 25 | ÷ | 1871 2000 |
| = | 18587 25 | × | 2000 1871 |
| = | 18587 | × | 80 1871 |
| X | = | 1486960 1871 |
| X | = | 794.74078 |