| 900 | × | 49 5 | h | + | 50000 | + | 75 | ÷ | 359 | × | ( | 2 | − | h | ) | × | 20 | × | 900 | × | 51 25 | × | 51 25 | = | 101300 |
| 方程左边 = | 8820 | h | + | 50000 | + | 5618160 359 | ( | 2 | − | h | ) |
| 8820 | h | + | 50000 | + | 5618160 359 | ( | 2 | − | h | ) | = | 101300 |
| 方程左边 = | 8820 | h | + | 50000 | + | 5618160 359 | × | 2 | − | 5618160 359 | h |
| = | 8820 | h | + | 50000 | + | 11236320 359 | − | 5618160 359 | h |
| = | - | 2451780 359 | h | + | 29186320 359 |
| - | 2451780 359 | h | + | 29186320 359 | = | 101300 |
| - | 2451780 359 | h | = | 101300 | − | 29186320 359 |
| - | 2451780 359 | h | = | 7180380 359 |
| - | 7180380 359 | = | 2451780 359 | h |
2451780 359 | h | = | - | 7180380 359 |
| h | = | - | 7180380 359 | ÷ | 2451780 359 |
| = | - | 7180380 359 | × | 359 2451780 |
| = | - | 39891 359 | × | 359 13621 |
| h | = | - | 14320869 4889939 |
| h | = | - | 39891 13621 |
| h | = | - 2.92864 |