| ( | 784 | + | x | ) | ÷ | ( | 1516 | + | x | ) | = | 53 100 |
| 方程两边同时乘以: | ( | 1516 | + | x | ) |
| ( | 784 | + | x | ) | = | 53 100 | ( | 1516 | + | x | ) |
| 784 | + | x | = | 53 100 | ( | 1516 | + | x | ) |
| 784 | + | x | = | 53 100 | × | 1516 | + | 53 100 | x |
| 784 | + | x | = | 20087 25 | + | 53 100 | x |
| x | − | 53 100 | x | = | 20087 25 | − | 784 |
47 100 | x | = | 20087 25 | − | 784 |
47 100 | x | = | 487 25 |
| x | = | 487 25 | ÷ | 47 100 |
| = | 487 25 | × | 100 47 |
| = | 487 | × | 4 47 |
| x | = | 1948 47 |
| x | = | 41.446809 |