587 20 | ÷ | 100 | = | ( | 3 10 | − | x | ) | ÷ | ( | 23 25 | − | x | ) |
| 方程两边同时乘以: | ( | 23 25 | − | x | ) |
587 20 | ÷ | 100 | × | ( | 23 25 | − | x | ) | = | ( | 3 10 | − | x | ) |
587 20 | ÷ | 100 | × | 23 25 | − | 587 20 | ÷ | 100 | × | x | = | ( | 3 10 | − | x | ) |
587 20 | ÷ | 100 | × | 23 25 | − | 587 20 | ÷ | 100 | × | x | = | 3 10 | − | x |
13501 50000 | − | 587 2000 | x | = | 3 10 | − | x |
| - | 587 2000 | x | + | x | = | 3 10 | − | 13501 50000 |
| - | - | 1413 2000 | x | = | 3 10 | − | 13501 50000 |
| - | - | 1413 2000 | x | = | 1499 50000 |
| - | 1499 50000 | = | - | 1413 2000 | x |
| - | 1413 2000 | x | = | - | 1499 50000 |
| x | = | 1499 50000 | ÷ | 1413 2000 |
| = | 1499 50000 | × | 2000 1413 |
| = | 1499 25 | × | 1 1413 |
| x | = | 1499 35325 |
| x | = | 0.042435 |