| 16 | a | ÷ | ( | 2000 | + | a | ) | + | 5 | = | 105427 10000 |
| 方程两边同时乘以: | ( | 2000 | + | a | ) |
| 16 | a | + | 5 | ( | 2000 | + | a | ) | = | 105427 10000 | ( | 2000 | + | a | ) |
| 16 | a | + | 5 | × | 2000 | + | 5 | a | = | 105427 10000 | ( | 2000 | + | a | ) |
| 16 | a | + | 5 | × | 2000 | + | 5 | a | = | 105427 10000 | × | 2000 | + | 105427 10000 | a |
| 16 | a | + | 10000 | + | 5 | a | = | 105427 5 | + | 105427 10000 | a |
| 21 | a | + | 10000 | = | 105427 5 | + | 105427 10000 | a |
| 21 | a | − | 105427 10000 | a | = | 105427 5 | − | 10000 |
104573 10000 | a | = | 105427 5 | − | 10000 |
104573 10000 | a | = | 55427 5 |
| a | = | 55427 5 | ÷ | 104573 10000 |
| = | 55427 5 | × | 10000 104573 |
| = | 55427 | × | 2000 104573 |
| a | = | 110854000 104573 |
| a | = | 1060.063305 |