4 5 | + | 300 | ÷ | 1650 | + | 20 | ÷ | 130 | + | X | ÷ | 108 | = | 151 50000 | ( | 730 | + | X | ) |
| 方程左边 = | 4 5 | + | 2 11 | + | 2 13 | + | X | × | 1 108 |
| = | 812 715 | + | 1 108 | X |
812 715 | + | 1 108 | X | = | 151 50000 | ( | 730 | + | X | ) |
| 方程右边 = | 151 50000 | × | 730 | + | 151 50000 | X |
| = | 11023 5000 | + | 151 50000 | X |
812 715 | + | 1 108 | X | = | 11023 5000 | + | 151 50000 | X |
1 108 | X | − | 151 50000 | X | = | 11023 5000 | − | 812 715 |
8423 1350000 | X | = | 11023 5000 | − | 812 715 |
8423 1350000 | X | = | 764289 715000 |
| X | = | 764289 715000 | ÷ | 8423 1350000 |
| = | 764289 715000 | × | 1350000 8423 |
| = | 764289 143 | × | 270 8423 |
| X | = | 206358030 1204489 |
| X | = | 171.32413 |