| ( | 14 100 | − | 10 100 | ) | ÷ | ( | 14 100 | − | x | ) | = | ( | - | 150 | − | 100 | ) | ÷ | ( | - | 150 | − | 0 | ) |
| 方程两边同时乘以: | ( | 14 100 | − | x | ) | , | ( | - | 150 | − | 0 | ) |
| ( | 14 100 | − | 10 100 | ) | ( | - | 150 | − | 0 | ) | = | ( | - | 150 | − | 100 | ) | ( | 14 100 | − | x | ) |
14 100 | ( | - | 150 | − | 0 | ) | − | 10 100 | ( | - | 150 | − | 0 | ) | = | ( | - | 150 | − | 100 | ) | ( | 14 100 | − | x | ) |
14 100 | ( | - | 150 | − | 0 | ) | − | 10 100 | ( | - | 150 | − | 0 | ) | = | - | 150 | ( | 14 100 | − | x | ) | − | 100 | ( | 14 100 | − | x | ) |
| - | 14 100 | × | 150 | − | 14 100 | × | 0 | − | 10 100 | ( | - | 150 | − | 0 | ) | = | - | 150 | ( | 14 100 | − | x | ) | − | 100 | ( | 14 100 | − | x | ) |
| - | 14 100 | × | 150 | − | 14 100 | × | 0 | − | 10 100 | ( | - | 150 | − | 0 | ) | = | - | 150 | × | 14 100 | + | 150 | x | − | 100 | ( | 14 100 | − | x | ) |
| - | 21 | − | 0 | − | 10 100 | ( | - | 150 | − | 0 | ) | = | - | 21 | + | 150 | x | − | 100 | ( | 14 100 | − | x | ) |
| - | 21 | − | 10 100 | ( | - | 150 | − | 0 | ) | = | - | 21 | + | 150 | x | − | 100 | ( | 14 100 | − | x | ) |
| - | 21 | + | 10 100 | × | 150 | + | 10 100 | × | 0 | = | - | 21 | + | 150 | x | − | 100 | ( | 14 100 | − | x | ) |
| - | 21 | + | 10 100 | × | 150 | + | 10 100 | × | 0 | = | - | 21 | + | 150 | x | − | 100 | × | 14 100 | + | 100 | x |
| - | 21 | + | 15 | + | 0 | = | - | 21 | + | 150 | x | − | 14 | + | 100 | x |
| - | 6 | = | - | 35 | + | 250 | x |
| - | 250 | x | = | - | 35 | + | 6 |
| - | 250 | x | = | - | 29 |
| 29 | = | 250 | x |
| 250 | x | = | 29 |
| x | = | 29 | ÷ | 250 |
| = | 29 | × | 1 250 |
| x | = | 29 250 |
| x | = | 0.116 |