| ( | 3 4 | ( | x | − | 888 | ) | − | 600 | ) | ÷ | 1000 | = | ( | 3 4 | ( | x | − | 600 | ) | − | 600 | ) | ÷ | 1400 |
| 方程左边 = | 3 4 | ( | x | − | 888 | ) | × | 1 1000 | − | 600 | × | 1 1000 |
| = | 3 4000 | ( | x | − | 888 | ) | − | 3 5 |
| = | 3 4000 | x | − | 3 4000 | × | 888 | − | 3 5 |
| = | 3 4000 | x | − | 333 500 | − | 3 5 |
| = | 3 4000 | x | − | 633 500 |
3 4000 | x | − | 633 500 | = | ( | 3 4 | ( | x | − | 600 | ) | − | 600 | ) | ÷ | 1400 |
| 方程右边 = | 3 4 | ( | x | − | 600 | ) | × | 1 1400 | − | 600 | × | 1 1400 |
| = | 3 5600 | ( | x | − | 600 | ) | − | 3 7 |
| = | 3 5600 | x | − | 3 5600 | × | 600 | − | 3 7 |
| = | 3 5600 | x | − | 9 28 | − | 3 7 |
| = | 3 5600 | x | − | 3 4 |
3 4000 | x | − | 633 500 | = | 3 5600 | x | − | 3 4 |
3 4000 | x | − | 3 5600 | x | = | - | 3 4 | + | 633 500 |
3 14000 | x | = | - | 3 4 | + | 633 500 |
3 14000 | x | = | 129 250 |
| x | = | 129 250 | ÷ | 3 14000 |
| = | 129 250 | × | 14000 3 |
| = | 43 | × | 56 |
| x | = | 2408 |