9 10 | x | + | 7 10 | x | − | 2 | = | 62 5 |
| 方程左边 = | 8 5 | x | − | 2 |
8 5 | x | − | 2 | = | 62 5 |
8 5 | x | = | 62 5 | + | 2 |
8 5 | x | = | 72 5 |
| x | = | 72 5 | ÷ | 8 5 |
| = | 72 5 | × | 5 8 |
| = | 9 | × | 1 |
| x | = | 9 |
1 2 | x | + | 3 10 | x | − | 29 10 | = | 51 10 |
| 方程左边 = | 4 5 | x | − | 29 10 |
4 5 | x | − | 29 10 | = | 51 10 |
4 5 | x | = | 51 10 | + | 29 10 |
4 5 | x | = | 8 |
| x | = | 8 | ÷ | 4 5 |
| = | 8 | × | 5 4 |
| = | 2 | × | 5 |
| x | = | 10 |
4 5 | x | + | 41 10 | = | 53 10 | + | 1 5 | x |
4 5 | x | − | 1 5 | x | = | 53 10 | − | 41 10 |
3 5 | x | = | 53 10 | − | 41 10 |
3 5 | x | = | 6 5 |
| x | = | 6 5 | ÷ | 3 5 |
| = | 6 5 | × | 5 3 |
| = | 2 | × | 1 |
| x | = | 2 |
3 10 | x | + | 9 10 | x | − | 9 2 | = | 3 2 |
| 方程左边 = | 6 5 | x | − | 9 2 |
6 5 | x | − | 9 2 | = | 3 2 |
6 5 | x | = | 3 2 | + | 9 2 |
6 5 | x | = | 6 |
| x | = | 6 | ÷ | 6 5 |
| = | 6 | × | 5 6 |
| = | 1 | × | 5 |
| x | = | 5 |
1 2 | x | + | 6 5 | = | 3 | + | 1 5 | x |
1 2 | x | − | 1 5 | x | = | 3 | − | 6 5 |
3 10 | x | = | 3 | − | 6 5 |
3 10 | x | = | 9 5 |
| x | = | 9 5 | ÷ | 3 10 |
| = | 9 5 | × | 10 3 |
| = | 3 | × | 2 |
| x | = | 6 |
1 5 | x | + | 3 5 | x | − | 43 10 | = | 9 2 |
| 方程左边 = | 4 5 | x | − | 43 10 |
4 5 | x | − | 43 10 | = | 9 2 |
4 5 | x | = | 9 2 | + | 43 10 |
4 5 | x | = | 44 5 |
| x | = | 44 5 | ÷ | 4 5 |
| = | 44 5 | × | 5 4 |
| = | 11 | × | 1 |
| x | = | 11 |