| 13 | + | 3 | x | = | 2 | x | + | 15 |
| 3 | x | − | 2 | x | = | 15 | − | 13 |
| x | = | 15 | − | 13 |
| x | = | 15 | − | 13 |
| x | = | 2 |
| 2 | x | × | 5 | + | 48 | = | 92 | − | x |
| 方程左边 = | 10 | x | + | 48 |
| 10 | x | + | 48 | = | 92 | − | x |
| 10 | x | + | x | = | 92 | − | 48 |
| 11 | x | = | 92 | − | 48 |
| 11 | x | = | 44 |
| x | = | 44 | ÷ | 11 |
| = | 44 | × | 1 11 |
| = | 4 | × | 1 |
| x | = | 4 |
| 2 | x | + | 2 | x | − | 24 | = | 132 |
| 方程左边 = | 4 | x | − | 24 |
| 4 | x | − | 24 | = | 132 |
| 4 | x | = | 132 | + | 24 |
| 4 | x | = | 156 |
| x | = | 156 | ÷ | 4 |
| = | 156 | × | 1 4 |
| = | 39 | × | 1 |
| x | = | 39 |
| 3 | x | × | 4 | + | 34 | = | 272 | − | 2 | x |
| 方程左边 = | 12 | x | + | 34 |
| 12 | x | + | 34 | = | 272 | − | 2 | x |
| 12 | x | + | 2 | x | = | 272 | − | 34 |
| 14 | x | = | 272 | − | 34 |
| 14 | x | = | 238 |
| x | = | 238 | ÷ | 14 |
| = | 238 | × | 1 14 |
| = | 17 | × | 1 |
| x | = | 17 |
| 2 | x | × | 5 | + | 28 | = | 46 | + | x |
| 方程左边 = | 10 | x | + | 28 |
| 10 | x | + | 28 | = | 46 | + | x |
| 10 | x | − | x | = | 46 | − | 28 |
| 9 | x | = | 46 | − | 28 |
| 9 | x | = | 18 |
| x | = | 18 | ÷ | 9 |
| = | 18 | × | 1 9 |
| = | 2 | × | 1 |
| x | = | 2 |
| 2 | x | × | 4 | + | 46 | = | 118 | − | x |
| 方程左边 = | 8 | x | + | 46 |
| 8 | x | + | 46 | = | 118 | − | x |
| 8 | x | + | x | = | 118 | − | 46 |
| 9 | x | = | 118 | − | 46 |
| 9 | x | = | 72 |
| x | = | 72 | ÷ | 9 |
| = | 72 | × | 1 9 |
| = | 8 | × | 1 |
| x | = | 8 |