| ( | 49180 | + | x | ) | ÷ | 53 50 | × | 3 50 | × | 28 25 | = | x |
| 方程左边 = | ( | 49180 | + | x | ) | × | 84 1325 |
| ( | 49180 | + | x | ) | × | 84 1325 | = | x |
| 方程左边 = | 49180 | × | 84 1325 | + | x | × | 84 1325 |
| = | 826224 265 | + | x | × | 84 1325 |
826224 265 | + | 84 1325 | x | = | x |
84 1325 | x | − | x | = | - | 826224 265 |
| - | 1241 1325 | x | = | - | 826224 265 |
826224 265 | = | 1241 1325 | x |
1241 1325 | x | = | 826224 265 |
| x | = | 826224 265 | ÷ | 1241 1325 |
| = | 826224 265 | × | 1325 1241 |
| = | 826224 | × | 5 1241 |
| x | = | 4131120 1241 |
| x | = | 3328.86382 |