| 1447 | × | 3 | ( | 1 | + | 16 | x | ÷ | ( | x | + | 2000 | ) | × | ( | 1 | + | 1 20 | ) | ) | = | 30000 |
| 1447 | × | 3 | × | 1 | + | 1447 | × | 3 | × | 16 | x | ÷ | ( | x | + | 2000 | ) | × | ( | 1 | + | 1 20 | ) | = | 30000 |
| 4341 | + | 69456 | x | ÷ | ( | x | + | 2000 | ) | × | ( | 1 | + | 1 20 | ) | = | 30000 |
| 方程两边同时乘以: | ( | x | + | 2000 | ) |
| 4341 | ( | x | + | 2000 | ) | + | 69456 | x | ( | 1 | + | 1 20 | ) | = | 30000 | ( | x | + | 2000 | ) |
| 4341 | x | + | 4341 | × | 2000 | + | 69456 | x | ( | 1 | + | 1 20 | ) | = | 30000 | ( | x | + | 2000 | ) |
| 4341 | x | + | 4341 | × | 2000 | + | 69456 | x | ( | 1 | + | 1 20 | ) | = | 30000 | x | + | 30000 | × | 2000 |
| 4341 | x | + | 8682000 | + | 69456 | x | ( | 1 | + | 1 20 | ) | = | 30000 | x | + | 60000000 |
| 4341 | x | + | 8682000 | + | 69456 | x | × | 1 | + | 69456 | x | × | 1 20 | = | 30000 | x | + | 60000000 |
| 4341 | x | + | 8682000 | + | 69456 | x | + | 17364 5 | x | = | 30000 | x | + | 60000000 |
386349 5 | x | + | 8682000 | = | 30000 | x | + | 60000000 |
386349 5 | x | − | 30000 | x | = | 60000000 | − | 8682000 |
236349 5 | x | = | 60000000 | − | 8682000 |
236349 5 | x | = | 51318000 |
| x | = | 51318000 | ÷ | 236349 5 |
| = | 51318000 | × | 5 236349 |
| = | 5702000 | × | 5 26261 |
| x | = | 28510000 26261 |
| x | = | 1085.640303 |