| ( | 180 | + | 368 | ) | ÷ | 30 | × | x | + | 150 | ÷ | 30 | × | ( | x | + | 15 | ) | + | 90 | ÷ | 30 | × | ( | x | + | 30 | ) | = | 1036 |
| 方程左边 = | ( | 180 | + | 368 | ) | × | 1 30 | x | + | 5 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| ( | 180 | + | 368 | ) | × | 1 30 | x | + | 5 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) | = | 1036 |
| 方程左边 = | 180 | × | 1 30 | x | + | 368 | × | 1 30 | x | + | 5 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 6 | x | + | 184 15 | x | + | 5 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 274 15 | x | + | 5 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 274 15 | x | + | 5 | x | + | 5 | × | 15 | + | 3 | ( | x | + | 30 | ) |
| = | 274 15 | x | + | 5 | x | + | 75 | + | 3 | ( | x | + | 30 | ) |
| = | 349 15 | x | + | 75 | + | 3 | ( | x | + | 30 | ) |
| = | 349 15 | x | + | 75 | + | 3 | x | + | 3 | × | 30 |
| = | 349 15 | x | + | 75 | + | 3 | x | + | 90 |
| = | 394 15 | x | + | 165 |
394 15 | x | + | 165 | = | 1036 |
394 15 | x | = | 1036 | − | 165 |
394 15 | x | = | 871 |
| x | = | 871 | ÷ | 394 15 |
| = | 871 | × | 15 394 |
| x | = | 13065 394 |
| x | = | 33.159898 |