| ( | ( | X | + | 1523196 25 | ) | − | 35000 | ) | × | 10 100 | − | 2520 | = | 0 |
| 方程左边 = | ( | X | + | 1523196 25 | ) | × | 10 100 | − | 35000 | × | 10 100 | − | 2520 |
| = | ( | X | + | 1523196 25 | ) | × | 10 100 | − | 3500 | − | 2520 |
| = | ( | X | + | 1523196 25 | ) | × | 10 100 | − | 6020 |
| = | X | × | 10 100 | + | 1523196 25 | × | 10 100 | − | 6020 |
| = | X | × | 10 100 | + | 761598 125 | − | 6020 |
| = | 10 100 | X | + | 9098 125 |
10 100 | X | + | 9098 125 | = | 0 |
10 100 | X | = | 0 | − | 9098 125 |
10 100 | X | = | - | 9098 125 |
| X | = | - | 9098 125 | ÷ | 10 100 |
| = | - | 9098 125 | × | 100 10 |
| = | - | 4549 5 | × | 4 5 |
| X | = | - | 18196 25 |
| X | = | - 727.84 |