| ( | 797760 | + | X | ) | × | 13645004 25 | ÷ | 3 | = | ( | 204521621 100 | + | 2678400 | − | X | ) | × | 12381779 50 | ÷ | 1517 100 |
| 方程左边 = | ( | 797760 | + | X | ) | × | 13645004 75 |
| ( | 797760 | + | X | ) | × | 13645004 75 | = | ( | 204521621 100 | + | 2678400 | − | X | ) | × | 12381779 50 | ÷ | 1517 100 |
| 方程左边 = | 797760 | × | 13645004 75 | + | X | × | 13645004 75 |