| ( | 18 25 | + | x | ) | ÷ | ( | 3 5000 | + | 10 | x | ) | = | 1100 |
| 方程两边同时乘以: | ( | 3 5000 | + | 10 | x | ) |
| ( | 18 25 | + | x | ) | = | 1100 | ( | 3 5000 | + | 10 | x | ) |
18 25 | + | x | = | 1100 | ( | 3 5000 | + | 10 | x | ) |
18 25 | + | x | = | 1100 | × | 3 5000 | + | 1100 | × | 10 | x |
18 25 | + | x | = | 33 50 | + | 11000 | x |
| x | − | 11000 | x | = | 33 50 | − | 18 25 |
| - | 10999 | x | = | 33 50 | − | 18 25 |
| - | 10999 | x | = | - | 3 50 |
3 50 | = | 10999 | x |
| 10999 | x | = | 3 50 |
| x | = | 3 50 | ÷ | 10999 |
| = | 3 50 | × | 1 10999 |
| x | = | 3 549950 |
| x | = | 0.000005 |