| ( | 7521 100 | + | x | ) | ÷ | ( | 3727 50 | + | x | ) | = | 27 2000 |
| 方程两边同时乘以: | ( | 3727 50 | + | x | ) |
| ( | 7521 100 | + | x | ) | = | 27 2000 | ( | 3727 50 | + | x | ) |
7521 100 | + | x | = | 27 2000 | ( | 3727 50 | + | x | ) |
7521 100 | + | x | = | 27 2000 | × | 3727 50 | + | 27 2000 | x |
7521 100 | + | x | = | 100629 100000 | + | 27 2000 | x |
| x | − | 27 2000 | x | = | 100629 100000 | − | 7521 100 |
1973 2000 | x | = | 100629 100000 | − | 7521 100 |
1973 2000 | x | = | - | 7420371 100000 |
| x | = | - | 7420371 100000 | ÷ | 1973 2000 |
| = | - | 7420371 100000 | × | 2000 1973 |
| = | - | 7420371 50 | × | 1 1973 |
| x | = | - | 7420371 98650 |
| x | = | - 75.219169 |