| 3 | × | 11 | ÷ | 10 | × | x | + | ( | 7 | − | x | ) | × | 95 | ÷ | 100 | = | 35 2 |
| 方程左边 = | 33 10 | x | + | ( | 7 | − | x | ) | × | 19 20 |
33 10 | x | + | ( | 7 | − | x | ) | × | 19 20 | = | 35 2 |
| 方程左边 = | 33 10 | x | + | 7 | × | 19 20 | − | x | × | 19 20 |
| = | 33 10 | x | + | 133 20 | − | x | × | 19 20 |
| = | 47 20 | x | + | 133 20 |
47 20 | x | + | 133 20 | = | 35 2 |
47 20 | x | = | 35 2 | − | 133 20 |
47 20 | x | = | 217 20 |
| x | = | 217 20 | ÷ | 47 20 |
| = | 217 20 | × | 20 47 |
| = | 217 | × | 1 47 |
| x | = | 217 47 |
| x | = | 4.617021 |