| X | ÷ | 1650 | + | 778447985543 625000000000 | = | 187 50000 | ( | 619 2 | + | X | ) |
| 方程右边 = | 187 50000 | × | 619 2 | + | 187 50000 | X |
| = | 115753 100000 | + | 187 50000 | X |
1 1650 | X | + | 778447985543 625000000000 | = | 115753 100000 | + | 187 50000 | X |
1 1650 | X | − | 187 50000 | X | = | 115753 100000 | − | 778447985543 625000000000 |
| - | 5171 1650000 | X | = | 115753 100000 | − | 778447985543 625000000000 |
| X= | √137940463 √175000 |