| 1 | ÷ | x | = | x | × | 339 200 | ÷ | ( | 427 100 | × | 3943 100000 | × | 3943 100000 | ) | × | 100000 | + | 1 | ÷ | 3943 | × | 100000 |
| 方程两边同时乘以: | x | , | ( | 427 100 | × | 3943 100000 | × | 3943 100000 | ) |
| 1 | ( | 427 100 | × | 3943 100000 | × | 3943 100000 | ) | = | x | × | 339 200 | × | 100000 | x | + | 1 | ÷ | 3943 | × | 100000 | x | ( | 427 100 | × | 3943 100000 | × | 3943 100000 | ) |
| 1 | × | 427 100 | × | 3943 100000 | × | 3943 100000 | = | x | × | 339 200 | × | 100000 | x | + | 1 | ÷ | 3943 | × | 100000 | x | ( | 427 100 | × | 3943 100000 | × | 3943 100000 | ) |
| 1 | × | 427 100 | × | 3943 100000 | × | 3943 100000 | = | x | × | 339 200 | × | 100000 | x | + | 1 | ÷ | 3943 | × | 100000 | x | × | 427 100 | × | 3943 100000 | × | 3943 100000 |