| ( | x | − | 315809 5000 | ) | ÷ | ( | x | + | 2 | ) | = | 1423 5000 |
| 方程两边同时乘以: | ( | x | + | 2 | ) |
| ( | x | − | 315809 5000 | ) | = | 1423 5000 | ( | x | + | 2 | ) |
| x | − | 315809 5000 | = | 1423 5000 | ( | x | + | 2 | ) |
| x | − | 315809 5000 | = | 1423 5000 | x | + | 1423 5000 | × | 2 |
| x | − | 315809 5000 | = | 1423 5000 | x | + | 1423 2500 |
| x | − | 1423 5000 | x | = | 1423 2500 | + | 315809 5000 |
3577 5000 | x | = | 1423 2500 | + | 315809 5000 |
3577 5000 | x | = | 63731 1000 |
| x | = | 63731 1000 | ÷ | 3577 5000 |
| = | 63731 1000 | × | 5000 3577 |
| = | 63731 | × | 5 3577 |
| x | = | 318655 3577 |
| x | = | 89.084428 |