651 1250 | X | ÷ | ( | 1 | − | 651 1250 | X | ) | = | 30 100 |
| 方程两边同时乘以: | ( | 1 | − | 651 1250 | X | ) |
651 1250 | X | = | 30 100 | ( | 1 | − | 651 1250 | X | ) |
651 1250 | X | = | 30 100 | × | 1 | − | 30 100 | × | 651 1250 | X |
651 1250 | X | = | 3 10 | − | 1953 12500 | X |
651 1250 | X | + | 1953 12500 | X | = | 3 10 |
8463 12500 | X | = | 3 10 |
| X | = | 3 10 | ÷ | 8463 12500 |
| = | 3 10 | × | 12500 8463 |
| = | 1 | × | 1250 2821 |
| X | = | 1250 2821 |
| X | = | 0.443105 |