9 100 | = | ( | 22427143 50 | − | X | ) | ÷ | 22427143 50 | × | X | × | 100 100 |
| 方程右边 = | ( | 22427143 50 | − | X | ) | × | 50 22427143 | X |
9 100 | = | ( | 22427143 50 | − | X | ) | × | 50 22427143 | X |
| 方程右边 = | 22427143 50 | × | 50 22427143 | X | − | X | × | 50 22427143 | X |
| = | 1949 1949 | X | − | X | × | 50 22427143 | X |
9 100 | = | 1949 1949 | X | − | X | × | 50 22427143 | X |