| 8224 | + | 7168 | ÷ | 25 | − | x | − | ( | 56 | x | ÷ | 1000 | ) | = | x |
| 方程左边 = | 8224 | + | 7168 25 | − | x | − | ( | 56 | x | ÷ | 1000 | ) |
| = | 212768 25 | − | x | − | ( | 56 | x | ÷ | 1000 | ) |
212768 25 | − | x | − | ( | 56 | x | ÷ | 1000 | ) | = | x |
| 方程左边 = | 212768 25 | − | x | − | 56 | x | ÷ | 1000 |
| = | 212768 25 | − | x | − | 7 125 | x |
| = | 212768 25 | − | 132 125 | x |
212768 25 | − | 132 125 | x | = | x |
| - | 132 125 | x | − | x | = | - | 212768 25 |
| - | 257 125 | x | = | - | 212768 25 |
212768 25 | = | 257 125 | x |
257 125 | x | = | 212768 25 |
| x | = | 212768 25 | ÷ | 257 125 |
| = | 212768 25 | × | 125 257 |
| = | 212768 | × | 5 257 |
| x | = | 1063840 257 |
| x | = | 4139.455253 |