| ( | 15 100 | × | 3 5 | ) | ÷ | ( | 1 | + | X | × | 3 5 | ) | = | 3 50 |
| 方程两边同时乘以: | ( | 1 | + | X | × | 3 5 | ) |
| ( | 15 100 | × | 3 5 | ) | = | 3 50 | ( | 1 | + | X | × | 3 5 | ) |
15 100 | × | 3 5 | = | 3 50 | ( | 1 | + | X | × | 3 5 | ) |
15 100 | × | 3 5 | = | 3 50 | × | 1 | + | 3 50 | X | × | 3 5 |
9 100 | = | 3 50 | + | 9 250 | X |
| - | 9 250 | X | = | 3 50 | − | 9 100 |
| - | 9 250 | X | = | - | 3 100 |
3 100 | = | 9 250 | X |
9 250 | X | = | 3 100 |
| X | = | 3 100 | ÷ | 9 250 |
| = | 3 100 | × | 250 9 |
| = | 1 2 | × | 5 3 |
| X | = | 5 6 |
| X | = | 0.833333 |