| 3 | x | + | 4 | ( | 1 | − | x | ) | = | 32 25 | ( | 3 | x | + | 2 | ( | 1 | − | x | ) | ) |
| 方程左边 = | 3 | x | + | 4 | × | 1 | − | 4 | x |
| = | 3 | x | + | 4 | − | 4 | x |
| = | - | 1 | x | + | 4 |
| - | 1 | x | + | 4 | = | 32 25 | ( | 3 | x | + | 2 | ( | 1 | − | x | ) | ) |
| 方程右边 = | 32 25 | × | 3 | x | + | 32 25 | × | 2 | ( | 1 | − | x | ) |
| = | 96 25 | x | + | 64 25 | ( | 1 | − | x | ) |
| = | 96 25 | x | + | 64 25 | × | 1 | − | 64 25 | x |
| = | 96 25 | x | + | 64 25 | − | 64 25 | x |
| = | 32 25 | x | + | 64 25 |
| - | 1 | x | + | 4 | = | 32 25 | x | + | 64 25 |
| - | 1 | x | − | 32 25 | x | = | 64 25 | − | 4 |
| - | 57 25 | x | = | 64 25 | − | 4 |
| - | 57 25 | x | = | - | 36 25 |
36 25 | = | 57 25 | x |
57 25 | x | = | 36 25 |
| x | = | 36 25 | ÷ | 57 25 |
| = | 36 25 | × | 25 57 |
| = | 12 | × | 1 19 |
| x | = | 12 19 |
| x | = | 0.631579 |