2 125 | X | ÷ | 3 1000 | + | 2 125 | ( | 1 | − | X | ) | ÷ | 11 500 | = | 309 100 |
| 方程左边 = | 16 3 | X | + | 8 11 | ( | 1 | − | X | ) |
16 3 | X | + | 8 11 | ( | 1 | − | X | ) | = | 309 100 |
| 方程左边 = | 16 3 | X | + | 8 11 | × | 1 | − | 8 11 | X |
| = | 16 3 | X | + | 8 11 | − | 8 11 | X |
| = | 152 33 | X | + | 8 11 |
152 33 | X | + | 8 11 | = | 309 100 |
152 33 | X | = | 309 100 | − | 8 11 |
152 33 | X | = | 2599 1100 |
| X | = | 2599 1100 | ÷ | 152 33 |
| = | 2599 1100 | × | 33 152 |
| = | 2599 100 | × | 3 152 |
| X | = | 7797 15200 |
| X | = | 0.512961 |