| 276 | ( | 1 | + | 6 5 | x | ) | = | 280 | ( | 1 | + | 4 5 | x | ) |
| 方程左边 = | 276 | × | 1 | + | 276 | × | 6 5 | x |
| = | 276 | + | 1656 5 | x |
| 276 | + | 1656 5 | x | = | 280 | ( | 1 | + | 4 5 | x | ) |
| 方程右边 = | 280 | × | 1 | + | 280 | × | 4 5 | x |
| = | 280 | + | 224 | x |
| 276 | + | 1656 5 | x | = | 280 | + | 224 | x |
1656 5 | x | − | 224 | x | = | 280 | − | 276 |
536 5 | x | = | 280 | − | 276 |
536 5 | x | = | 4 |
| x | = | 4 | ÷ | 536 5 |
| = | 4 | × | 5 536 |
| = | 1 | × | 5 134 |
| x | = | 5 134 |
| x | = | 0.037313 |