10 100 | = | 100 | ( | x | − | 147 | ) | ÷ | ( | x | × | 400 | ÷ | 100 | ) |
| 方程两边同时乘以: | ( | x | × | 400 | ÷ | 100 | ) |
10 100 | ( | x | × | 400 | ÷ | 100 | ) | = | 100 | ( | x | − | 147 | ) |
10 100 | x | × | 400 | ÷ | 100 | = | 100 | ( | x | − | 147 | ) |
10 100 | x | × | 400 | ÷ | 100 | = | 100 | x | − | 100 | × | 147 |
2 5 | x | = | 100 | x | − | 14700 |
2 5 | x | − | 100 | x | = | - | 14700 |
| - | 498 5 | x | = | - | 14700 |
| 14700 | = | 498 5 | x |
498 5 | x | = | 14700 |
| x | = | 14700 | ÷ | 498 5 |
| = | 14700 | × | 5 498 |
| = | 2450 | × | 5 83 |
| x | = | 12250 83 |
| x | = | 147.590361 |