67 1000 | X | ÷ | ( | 1 | + | 13 1000 | X | ) | − | 3173 1000 | = | 0 |
| 方程两边同时乘以: | ( | 1 | + | 13 1000 | X | ) |
67 1000 | X | − | 3173 1000 | ( | 1 | + | 13 1000 | X | ) | = | 0 |
67 1000 | X | − | 3173 1000 | × | 1 | − | 3173 1000 | × | 13 1000 | X | = | 0 |
67 1000 | X | − | 3173 1000 | − | 41249 1000000 | X | = | 0 |
25751 1000000 | X | − | 3173 1000 | = | 0 |
25751 1000000 | X | = | 0 | + | 3173 1000 |
25751 1000000 | X | = | 3173 1000 |
| X | = | 3173 1000 | ÷ | 25751 1000000 |
| = | 3173 1000 | × | 1000000 25751 |
| = | 3173 | × | 1000 25751 |
| X | = | 3173000 25751 |
| X | = | 123.218516 |