| 3 | x | + | 4 | ( | 1 | − | x | ) | = | 34 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 | = | 34 25 | ( | 3 | x | + | 2 | ( | 1 | − | x | ) | ) |
| 方程右边 = | 34 25 | × | 3 | x | + | 34 25 | × | 2 | ( | 1 | − | x | ) |
| = | 102 25 | x | + | 68 25 | ( | 1 | − | x | ) |
| = | 102 25 | x | + | 68 25 | × | 1 | − | 68 25 | x |
| = | 102 25 | x | + | 68 25 | − | 68 25 | x |
| = | 34 25 | x | + | 68 25 |
| - | 1 | x | + | 4 | = | 34 25 | x | + | 68 25 |
| - | 1 | x | − | 34 25 | x | = | 68 25 | − | 4 |
| - | 59 25 | x | = | 68 25 | − | 4 |
| - | 59 25 | x | = | - | 32 25 |
32 25 | = | 59 25 | x |
59 25 | x | = | 32 25 |
| x | = | 32 25 | ÷ | 59 25 |
| = | 32 25 | × | 25 59 |
| = | 32 | × | 1 59 |
| x | = | 32 59 |
| x | = | 0.542373 |