| x | ÷ | 150 | + | 30 | ( | x | ÷ | 150 | ) | × | 50 100 | + | ( | x | ÷ | 150 | ) | × | 10 100 | = | 40 100 |
| 方程左边 = | x | × | 1 150 | + | 15 | ( | x | ÷ | 150 | ) | + | ( | x | ÷ | 150 | ) | × | 10 100 |
1 150 | x | + | 15 | ( | x | ÷ | 150 | ) | + | ( | x | ÷ | 150 | ) | × | 10 100 | = | 40 100 |
| 方程左边 = | 1 150 | x | + | 15 | x | ÷ | 150 | + | ( | x | ÷ | 150 | ) | × | 10 100 |
| = | 1 150 | x | + | 1 10 | x | + | ( | x | ÷ | 150 | ) | × | 10 100 |
| = | 8 75 | x | + | ( | x | ÷ | 150 | ) | × | 10 100 |
| = | 8 75 | x | + | x | ÷ | 150 | × | 10 100 |
| = | 8 75 | x | + | x | × | 1 1500 |
| = | 161 1500 | x |
161 1500 | x | = | 40 100 |
| x | = | 40 100 | ÷ | 161 1500 |
| = | 40 100 | × | 1500 161 |
| = | 40 | × | 15 161 |
| x | = | 600 161 |
| x | = | 3.726708 |