| ( | X | × | 365 | × | 1 | + | 300 | − | ( | 1500 | + | 3 20 | × | 365 | X | ) | ) | ( | 1 | − | 25 100 | ) | + | 61183 100 | = | 1323 2 |
| 方程左边 = | X | × | 365 | × | 1 | ( | 1 | − | 25 100 | ) | + | 300 | ( | 1 | − | 25 100 | ) | − | ( | 1500 | + | 3 20 | × | 365 | X | ) | ( | 1 | − | 25 100 | ) | + | 61183 100 |
| = | X | × | 365 | ( | 1 | − | 25 100 | ) | + | 300 | ( | 1 | − | 25 100 | ) | − | ( | 1500 | + | 3 20 | × | 365 | X | ) | ( | 1 | − | 25 100 | ) | + | 61183 100 |
| = | X | × | 365 | × | 1 | − | X | × | 365 | × | 25 100 | + | 300 | ( | 1 | − | 25 100 | ) | − | ( | 1500 | + | 3 20 | × | 365 | X | ) | ( | 1 | − | 25 100 | ) | + | 61183 100 |
| = | X | × | 365 | − | X | × | 365 4 | + | 300 | ( | 1 | − | 25 100 | ) | − | ( | 1500 | + | 3 20 | × | 365 | X | ) | ( | 1 | − | 25 100 | ) | + | 61183 100 |
| = | 1095 4 | X | + | 300 | ( | 1 | − | 25 100 | ) | − | ( | 1500 | + | 3 20 | × | 365 | X | ) | ( | 1 | − | 25 100 | ) | + | 61183 100 |
| = | 1095 4 | X | + | 300 | × | 1 | − | 300 | × | 25 100 | − | ( | 1500 | + | 3 20 | × | 365 | X | ) | ( | 1 | − | 25 100 | ) | + | 61183 100 |
| = | 1095 4 | X | + | 300 | − | 75 | − | ( | 1500 | + | 3 20 | × | 365 | X | ) | ( | 1 | − | 25 100 | ) | + | 61183 100 |
| = | 1095 4 | X | + | 83683 100 | − | ( | 1500 | + | 3 20 | × | 365 | X | ) | ( | 1 | − | 25 100 | ) |
| = | 1095 4 | X | + | 83683 100 | − | 1500 | ( | 1 | − | 25 100 | ) | − | 3 20 | × | 365 | X | ( | 1 | − | 25 100 | ) |
| = | 1095 4 | X | + | 83683 100 | − | 1500 | ( | 1 | − | 25 100 | ) | − | 219 4 | X | ( | 1 | − | 25 100 | ) |
| = | 1095 4 | X | + | 83683 100 | − | 1500 | × | 1 | + | 1500 | × | 25 100 | − | 219 4 | X | ( | 1 | − | 25 100 | ) |
| = | 1095 4 | X | + | 83683 100 | − | 1500 | + | 375 | − | 219 4 | X | ( | 1 | − | 25 100 | ) |
| = | 1095 4 | X | − | 28817 100 | − | 219 4 | X | ( | 1 | − | 25 100 | ) |
| = | 1095 4 | X | − | 28817 100 | − | 219 4 | X | × | 1 | + | 219 4 | X | × | 25 100 |
| = | 1095 4 | X | − | 28817 100 | − | 219 4 | X | + | 219 16 | X |
| = | 3723 16 | X | − | 28817 100 |
3723 16 | X | − | 28817 100 | = | 1323 2 |
3723 16 | X | = | 1323 2 | + | 28817 100 |
3723 16 | X | = | 94967 100 |
| X | = | 94967 100 | ÷ | 3723 16 |
| = | 94967 100 | × | 16 3723 |
| = | 94967 25 | × | 4 3723 |
| X | = | 379868 93075 |
| X | = | 4.081311 |