| ( | 4481 | − | x | ) | ÷ | ( | 3293 | + | x | ) | = | 9 10 |
| 方程两边同时乘以: | ( | 3293 | + | x | ) |
| ( | 4481 | − | x | ) | = | 9 10 | ( | 3293 | + | x | ) |
| 4481 | − | x | = | 9 10 | ( | 3293 | + | x | ) |
| 4481 | − | x | = | 9 10 | × | 3293 | + | 9 10 | x |
| 4481 | − | x | = | 29637 10 | + | 9 10 | x |
| - | x | − | 9 10 | x | = | 29637 10 | − | 4481 |
| - | 19 10 | x | = | 29637 10 | − | 4481 |
| - | 19 10 | x | = | - | 15173 10 |
15173 10 | = | 19 10 | x |
19 10 | x | = | 15173 10 |
| x | = | 15173 10 | ÷ | 19 10 |
| = | 15173 10 | × | 10 19 |
| = | 15173 | × | 1 19 |
| x | = | 15173 19 |
| x | = | 798.578947 |