| 8224 | + | 256 | ( | 28 | ÷ | 125 | ) | − | ( | 28 | x | ÷ | 500 | ) | = | x |
| 方程左边 = | 8224 | + | 256 | × | 28 | ÷ | 125 | − | ( | 28 | x | ÷ | 500 | ) |
| = | 8224 | + | 7168 125 | − | ( | 28 | x | ÷ | 500 | ) |
| = | 1035168 125 | − | ( | 28 | x | ÷ | 500 | ) |
| = | 1035168 125 | − | 28 | x | ÷ | 500 |
| = | 1035168 125 | − | 7 125 | x |
1035168 125 | − | 7 125 | x | = | x |
| - | 7 125 | x | − | x | = | - | 1035168 125 |
| - | 132 125 | x | = | - | 1035168 125 |
1035168 125 | = | 132 125 | x |
132 125 | x | = | 1035168 125 |
| x | = | 1035168 125 | ÷ | 132 125 |
| = | 1035168 125 | × | 125 132 |
| = | 86264 | × | 1 11 |
| x | = | 86264 11 |
| x | = | 7842.181818 |