7 10 | x | ÷ | 3 10 | = | 5 | ÷ | 3 | + | ( | 6 5 | − | 3 10 | x | ) | ÷ | 1 5 |
| 方程左边 = | 7 3 | x |
7 3 | x | = | 5 | ÷ | 3 | + | ( | 6 5 | − | 3 10 | x | ) | ÷ | 1 5 |
| 方程右边 = | 5 3 | + | ( | 6 5 | − | 3 10 | x | ) | × | 5 |
7 3 | x | = | 5 3 | + | ( | 6 5 | − | 3 10 | x | ) | × | 5 |
| 方程右边 = | 5 3 | + | 6 5 | × | 5 | − | 3 10 | x | × | 5 |
| = | 5 3 | + | 6 | − | 3 2 | x |
| = | 23 3 | − | 3 2 | x |
7 3 | x | = | 23 3 | − | 3 2 | x |
7 3 | x | + | 3 2 | x | = | 23 3 |
23 6 | x | = | 23 3 |
| x | = | 23 3 | ÷ | 23 6 |
| = | 23 3 | × | 6 23 |
| = | 1 | × | 2 |
| x | = | 2 |