| ( | x | + | 5663 20 | ) | ÷ | ( | x | + | 5463 20 | ) | = | 57257 500000 |
| 方程两边同时乘以: | ( | x | + | 5463 20 | ) |
| ( | x | + | 5663 20 | ) | = | 57257 500000 | ( | x | + | 5463 20 | ) |
| x | + | 5663 20 | = | 57257 500000 | ( | x | + | 5463 20 | ) |
| x | + | 5663 20 | = | 57257 500000 | x | + | 57257 500000 | × | 5463 20 |
| x | + | 5663 20 | = | 57257 500000 | x | + | 312794991 10000000 |
| x | − | 57257 500000 | x | = | 312794991 10000000 | − | 5663 20 |
442743 500000 | x | = | 312794991 10000000 | − | 5663 20 |