| ( | 197 | + | x | ) | × | 24 5 | = | 5 | x | + | 197 | × | 93 20 |
| 方程左边 = | 197 | × | 24 5 | + | x | × | 24 5 |
| = | 4728 5 | + | x | × | 24 5 |
4728 5 | + | 24 5 | x | = | 5 | x | + | 197 | × | 93 20 |
| 方程右边 = | 5 | x | + | 18321 20 |
4728 5 | + | 24 5 | x | = | 5 | x | + | 18321 20 |
24 5 | x | − | 5 | x | = | 18321 20 | − | 4728 5 |
| - | 1 5 | x | = | 18321 20 | − | 4728 5 |
| - | 1 5 | x | = | - | 591 20 |
591 20 | = | 1 5 | x |
1 5 | x | = | 591 20 |
| x | = | 591 20 | ÷ | 1 5 |
| = | 591 20 | × | 5 |
| = | 591 4 | × | 1 |
| x | = | 591 4 |
| x | = | 147.75 |