| 76015 | − | 5 | x | = | 35 | ( | 28 | x | + | 33 | ) |
| 方程右边 = | 35 | × | 28 | x | + | 35 | × | 33 |
| = | 980 | x | + | 1155 |
| 76015 | − | 5 | x | = | 980 | x | + | 1155 |
| - | 5 | x | − | 980 | x | = | 1155 | − | 76015 |
| - | 985 | x | = | 1155 | − | 76015 |
| - | 985 | x | = | - | 74860 |
| 74860 | = | 985 | x |
| 985 | x | = | 74860 |
| x | = | 74860 | ÷ | 985 |
| = | 74860 | × | 1 985 |
| = | 14972 | × | 1 197 |
| x | = | 14972 197 |
| x | = | 76 |