| ( | 3 5 | ( | 1 | + | x | ) | ) | ÷ | ( | 12 | ( | 1 | − | 3 5 | ) | ) | + | x | = | 11 100 |
| 方程两边同时乘以: | ( | 12 | ( | 1 | − | 3 5 | ) | ) |
| ( | 3 5 | ( | 1 | + | x | ) | ) | + | x | ( | 12 | ( | 1 | − | 3 5 | ) | ) | = | 11 100 | ( | 12 | ( | 1 | − | 3 5 | ) | ) |
3 5 | ( | 1 | + | x | ) | + | x | ( | 12 | ( | 1 | − | 3 5 | ) | ) | = | 11 100 | ( | 12 | ( | 1 | − | 3 5 | ) | ) |
3 5 | ( | 1 | + | x | ) | + | x | ( | 12 | ( | 1 | − | 3 5 | ) | ) | = | 11 100 | × | 12 | ( | 1 | − | 3 5 | ) |
3 5 | ( | 1 | + | x | ) | + | x | ( | 12 | ( | 1 | − | 3 5 | ) | ) | = | 33 25 | ( | 1 | − | 3 5 | ) |
3 5 | × | 1 | + | 3 5 | x | + | x | ( | 12 | ( | 1 | − | 3 5 | ) | ) | = | 33 25 | ( | 1 | − | 3 5 | ) |
3 5 | × | 1 | + | 3 5 | x | + | x | ( | 12 | ( | 1 | − | 3 5 | ) | ) | = | 33 25 | × | 1 | − | 33 25 | × | 3 5 |
3 5 | + | 3 5 | x | + | x | ( | 12 | ( | 1 | − | 3 5 | ) | ) | = | 33 25 | − | 99 125 |
3 5 | + | 3 5 | x | + | x | ( | 12 | ( | 1 | − | 3 5 | ) | ) | = | 66 125 |
3 5 | + | 3 5 | x | + | x | × | 12 | ( | 1 | − | 3 5 | ) | = | 66 125 |
3 5 | + | 3 5 | x | + | x | × | 12 | × | 1 | − | x | × | 12 | × | 3 5 | = | 66 125 |
3 5 | + | 3 5 | x | + | x | × | 12 | − | x | × | 36 5 | = | 66 125 |
3 5 | + | 27 5 | x | = | 66 125 |
27 5 | x | = | 66 125 | − | 3 5 |
27 5 | x | = | - | 9 125 |
| x | = | - | 9 125 | ÷ | 27 5 |
| = | - | 9 125 | × | 5 27 |
| = | - | 1 25 | × | 1 3 |
| x | = | - | 1 75 |
| x | = | - 0.013333 |