3 10 | x | + | 1 2 | x | + | 6 5 | = | 10 |
| 方程左边 = | 4 5 | x | + | 6 5 |
4 5 | x | + | 6 5 | = | 10 |
4 5 | x | = | 10 | − | 6 5 |
4 5 | x | = | 44 5 |
| x | = | 44 5 | ÷ | 4 5 |
| = | 44 5 | × | 5 4 |
| = | 11 | × | 1 |
| x | = | 11 |
2 5 | x | + | 1 2 | x | + | 22 5 | = | 143 10 |
| 方程左边 = | 9 10 | x | + | 22 5 |
9 10 | x | + | 22 5 | = | 143 10 |
9 10 | x | = | 143 10 | − | 22 5 |
9 10 | x | = | 99 10 |
| x | = | 99 10 | ÷ | 9 10 |
| = | 99 10 | × | 10 9 |
| = | 11 | × | 1 |
| x | = | 11 |
9 10 | x | − | 19 10 | = | 51 10 | + | 1 5 | x |
9 10 | x | − | 1 5 | x | = | 51 10 | + | 19 10 |
7 10 | x | = | 51 10 | + | 19 10 |
7 10 | x | = | 7 |
| x | = | 7 | ÷ | 7 10 |
| = | 7 | × | 10 7 |
| = | 1 | × | 10 |
| x | = | 10 |
7 10 | x | + | 3 10 | x | − | 8 5 | = | 32 5 |
| 方程左边 = | 1 | x | − | 8 5 |
| 1 | x | − | 8 5 | = | 32 5 |
| 1 | x | = | 32 5 | + | 8 5 |
| x | = | 32 5 | + | 8 5 |
| x | = | 8 |
9 10 | x | + | 3 10 | x | + | 2 | = | 22 5 |
| 方程左边 = | 6 5 | x | + | 2 |
6 5 | x | + | 2 | = | 22 5 |
6 5 | x | = | 22 5 | − | 2 |
6 5 | x | = | 12 5 |
| x | = | 12 5 | ÷ | 6 5 |
| = | 12 5 | × | 5 6 |
| = | 2 | × | 1 |
| x | = | 2 |
3 10 | x | + | 16 5 | = | 37 10 | + | 1 5 | x |
3 10 | x | − | 1 5 | x | = | 37 10 | − | 16 5 |
1 10 | x | = | 37 10 | − | 16 5 |
1 10 | x | = | 1 2 |
| x | = | 1 2 | ÷ | 1 10 |
| = | 1 2 | × | 10 |
| = | 1 | × | 5 |
| x | = | 5 |