| ( | 5 | ( | 512 | + | X | ) | + | 108 | + | 72 | + | 16 | + | 34 | ) | ÷ | ( | 512 | + | 27 | + | 24 | + | 8 | + | 34 | + | X | ) | = | 47 10 |
| 方程两边同时乘以: | ( | 512 | + | 27 | + | 24 | + | 8 | + | 34 | + | X | ) |
| ( | 5 | ( | 512 | + | X | ) | + | 108 | + | 72 | + | 16 | + | 34 | ) | = | 47 10 | ( | 512 | + | 27 | + | 24 | + | 8 | + | 34 | + | X | ) |
| 5 | ( | 512 | + | X | ) | + | 108 | + | 72 | + | 16 | + | 34 | = | 47 10 | ( | 512 | + | 27 | + | 24 | + | 8 | + | 34 | + | X | ) |
| 5 | ( | 512 | + | X | ) | + | 108 | + | 72 | + | 16 | + | 34 | = | 47 10 | × | 512 | + | 47 10 | × | 27 | + | 47 10 | × | 24 | + | 47 10 | × | 8 | + | 47 10 | × | 34 | + | 47 10 | X |
| 5 | ( | 512 | + | X | ) | + | 108 | + | 72 | + | 16 | + | 34 | = | 12032 5 | + | 1269 10 | + | 564 5 | + | 188 5 | + | 799 5 | + | 47 10 | X |
| 5 | ( | 512 | + | X | ) | + | 230 | = | 5687 2 | + | 47 10 | X |
| 5 | × | 512 | + | 5 | X | + | 230 | = | 5687 2 | + | 47 10 | X |
| 2560 | + | 5 | X | + | 230 | = | 5687 2 | + | 47 10 | X |
| 2790 | + | 5 | X | = | 5687 2 | + | 47 10 | X |
| 5 | X | − | 47 10 | X | = | 5687 2 | − | 2790 |
3 10 | X | = | 5687 2 | − | 2790 |
3 10 | X | = | 107 2 |
| X | = | 107 2 | ÷ | 3 10 |
| = | 107 2 | × | 10 3 |
| = | 107 | × | 5 3 |
| X | = | 535 3 |
| X | = | 178.333333 |