| 500 | − | ( | 4937 10 | − | x | ) | ÷ | ( | 4937 10 | − | x | ) | = | 63 50 |
| 方程两边同时乘以: | ( | 4937 10 | − | x | ) |
| 500 | ( | 4937 10 | − | x | ) | − | ( | 4937 10 | − | x | ) | = | 63 50 | ( | 4937 10 | − | x | ) |
| 500 | × | 4937 10 | − | 500 | x | − | ( | 4937 10 | − | x | ) | = | 63 50 | ( | 4937 10 | − | x | ) |
| 500 | × | 4937 10 | − | 500 | x | − | ( | 4937 10 | − | x | ) | = | 63 50 | × | 4937 10 | − | 63 50 | x |
| 246850 | − | 500 | x | − | ( | 4937 10 | − | x | ) | = | 311031 500 | − | 63 50 | x |
| 246850 | − | 500 | x | − | 4937 10 | + | x | = | 311031 500 | − | 63 50 | x |
2463563 10 | − | 499 | x | = | 311031 500 | − | 63 50 | x |
| - | 499 | x | + | 63 50 | x | = | 311031 500 | − | 2463563 10 |
| - | 24887 50 | x | = | 311031 500 | − | 2463563 10 |
| - | 24887 50 | x | = | - | 122867119 500 |
122867119 500 | = | 24887 50 | x |
24887 50 | x | = | 122867119 500 |
| x | = | 122867119 500 | ÷ | 24887 50 |
| = | 122867119 500 | × | 50 24887 |
| = | 2996759 10 | × | 1 607 |
| x | = | 2996759 6070 |
| x | = | 2996759 6070 |