| x | = | 8 | ÷ | 5 | × | ( | x | − | 7 10 | ) |
| 方程右边 = | 8 5 | ( | x | − | 7 10 | ) |
| x | = | 8 5 | ( | x | − | 7 10 | ) |
| 方程右边 = | 8 5 | x | − | 8 5 | × | 7 10 |
| = | 8 5 | x | − | 28 25 |
| x | = | 8 5 | x | − | 28 25 |
| x | − | 8 5 | x | = | - | 28 25 |
| - | 3 5 | x | = | - | 28 25 |
28 25 | = | 3 5 | x |
3 5 | x | = | 28 25 |
| x | = | 28 25 | ÷ | 3 5 |
| = | 28 25 | × | 5 3 |
| = | 28 5 | × | 1 3 |
| x | = | 28 15 |
| x | = | 1.866667 |