356 5 | + | ( | 20 | − | x | ) | × | 43 10 | = | ( | 50 | + | 554 5 | + | 13 2 | x | ) | ÷ | 3 2 |
| 方程左边 = | 356 5 | + | 20 | × | 43 10 | − | x | × | 43 10 |
| = | 356 5 | + | 86 | − | x | × | 43 10 |
| = | 786 5 | − | 43 10 | x |
786 5 | − | 43 10 | x | = | ( | 50 | + | 554 5 | + | 13 2 | x | ) | ÷ | 3 2 |
| 方程右边 = | 50 | × | 2 3 | + | 554 5 | × | 2 3 | + | 13 2 | x | × | 2 3 |
| = | 100 3 | + | 1108 15 | + | 13 3 | x |
| = | 536 5 | + | 13 3 | x |
786 5 | − | 43 10 | x | = | 536 5 | + | 13 3 | x |
| - | 43 10 | x | − | 13 3 | x | = | 536 5 | − | 786 5 |
| - | 259 30 | x | = | 536 5 | − | 786 5 |
| - | 259 30 | x | = | - | 50 |
| 50 | = | 259 30 | x |
259 30 | x | = | 50 |
| x | = | 50 | ÷ | 259 30 |
| = | 50 | × | 30 259 |
| x | = | 1500 259 |
| x | = | 5.791506 |