| X | = | ( | 528 | + | 1584 5 | + | X | ) | × | 7 200 |
| 方程右边 = | 528 | × | 7 200 | + | 1584 5 | × | 7 200 | + | X | × | 7 200 |
| = | 462 25 | + | 1386 125 | + | X | × | 7 200 |
| = | 3696 125 | + | 7 200 | X |
| X | = | 3696 125 | + | 7 200 | X |
| X | − | 7 200 | X | = | 3696 125 |
193 200 | X | = | 3696 125 |
| X | = | 3696 125 | ÷ | 193 200 |
| = | 3696 125 | × | 200 193 |
| = | 3696 5 | × | 8 193 |
| X | = | 29568 965 |
| X | = | 30.640415 |