| ( | 106 | + | x | ) | ÷ | ( | 176 | + | x | ) | = | 809 500 |
| 方程两边同时乘以: | ( | 176 | + | x | ) |
| ( | 106 | + | x | ) | = | 809 500 | ( | 176 | + | x | ) |
| 106 | + | x | = | 809 500 | ( | 176 | + | x | ) |
| 106 | + | x | = | 809 500 | × | 176 | + | 809 500 | x |
| 106 | + | x | = | 35596 125 | + | 809 500 | x |
| x | − | 809 500 | x | = | 35596 125 | − | 106 |
| - | 309 500 | x | = | 35596 125 | − | 106 |
| - | 309 500 | x | = | 22346 125 |
| - | 22346 125 | = | 309 500 | x |
309 500 | x | = | - | 22346 125 |
| x | = | - | 22346 125 | ÷ | 309 500 |
| = | - | 22346 125 | × | 500 309 |
| = | - | 22346 | × | 4 309 |
| x | = | - | 89384 309 |
| x | = | - 289.268608 |