3 10 | = | ( | 13 250 | X | ) | ÷ | ( | 1 | − | 13 250 | X | ) |
| 方程两边同时乘以: | ( | 1 | − | 13 250 | X | ) |
3 10 | ( | 1 | − | 13 250 | X | ) | = | ( | 13 250 | X | ) |
3 10 | × | 1 | − | 3 10 | × | 13 250 | X | = | ( | 13 250 | X | ) |
3 10 | × | 1 | − | 3 10 | × | 13 250 | X | = | 13 250 | X |
3 10 | − | 39 2500 | X | = | 13 250 | X |
| - | 39 2500 | X | − | 13 250 | X | = | - | 3 10 |
| - | 169 2500 | X | = | - | 3 10 |
3 10 | = | 169 2500 | X |
169 2500 | X | = | 3 10 |
| X | = | 3 10 | ÷ | 169 2500 |
| = | 3 10 | × | 2500 169 |
| = | 3 | × | 250 169 |
| X | = | 750 169 |
| X | = | 4.43787 |