7 10 | x | − | 201 20 | = | 18 5 |
7 10 | x | = | 18 5 | + | 201 20 |
7 10 | x | = | 273 20 |
| x | = | 273 20 | ÷ | 7 10 |
| = | 273 20 | × | 10 7 |
| = | 39 2 | × | 1 |
| x | = | 39 2 |
| x | = | 19.5 |
| 4 | x | × | 4 | − | 2 | x | × | 4 | − | 26 | = | 46 |
| 方程左边 = | 16 | x | − | 8 | x | − | 26 |
| = | 8 | x | − | 26 |
| 8 | x | − | 26 | = | 46 |
| 8 | x | = | 46 | + | 26 |
| 8 | x | = | 72 |
| x | = | 72 | ÷ | 8 |
| = | 72 | × | 1 8 |
| = | 9 | × | 1 |
| x | = | 9 |
| 3 | x | × | 5 | + | 3 | x | − | 45 | = | 27 |
| 方程左边 = | 15 | x | + | 3 | x | − | 45 |
| = | 18 | x | − | 45 |
| 18 | x | − | 45 | = | 27 |
| 18 | x | = | 27 | + | 45 |
| 18 | x | = | 72 |
| x | = | 72 | ÷ | 18 |
| = | 72 | × | 1 18 |
| = | 4 | × | 1 |
| x | = | 4 |
| 4 | x | + | 46 | = | 118 | − | 2 | x | × | 2 |
| 方程右边 = | 118 | − | 4 | x |
| 4 | x | + | 46 | = | 118 | − | 4 | x |
| 4 | x | + | 4 | x | = | 118 | − | 46 |
| 8 | x | = | 118 | − | 46 |
| 8 | x | = | 72 |
| x | = | 72 | ÷ | 8 |
| = | 72 | × | 1 8 |
| = | 9 | × | 1 |
| x | = | 9 |
| 2 | x | × | 4 | + | x | − | 22 | = | 95 |
| 方程左边 = | 8 | x | + | x | − | 22 |
| = | 9 | x | − | 22 |
| 9 | x | − | 22 | = | 95 |
| 9 | x | = | 95 | + | 22 |
| 9 | x | = | 117 |
| x | = | 117 | ÷ | 9 |
| = | 117 | × | 1 9 |
| = | 13 | × | 1 |
| x | = | 13 |
| ( | x | − | 3 | ) | ÷ | 2 | = | 17 2 |
| 方程左边 = | x | × | 1 2 | − | 3 | × | 1 2 |
| = | x | × | 1 2 | − | 3 2 |
1 2 | x | − | 3 2 | = | 17 2 |
1 2 | x | = | 17 2 | + | 3 2 |
1 2 | x | = | 10 |
| x | = | 10 | ÷ | 1 2 |
| = | 10 | × | 2 |
| x | = | 20 |