| ( | 3472 125 | + | x | ) | × | 9 4 | = | 6944 125 | + | 9516 125 | − | x |
| 方程左边 = | 3472 125 | × | 9 4 | + | x | × | 9 4 |
| = | 7812 125 | + | x | × | 9 4 |
7812 125 | + | 9 4 | x | = | 6944 125 | + | 9516 125 | − | x |
| 方程右边 = | 3292 25 | − | x |
7812 125 | + | 9 4 | x | = | 3292 25 | − | x |
9 4 | x | + | x | = | 3292 25 | − | 7812 125 |
13 4 | x | = | 3292 25 | − | 7812 125 |
13 4 | x | = | 8648 125 |
| x | = | 8648 125 | ÷ | 13 4 |
| = | 8648 125 | × | 4 13 |
| x | = | 34592 1625 |
| x | = | 21.287385 |