( | 55827 | − | 7500 | − | X | ) | × | 7 25 | = | X |
方程左边 = | 55827 | × | 7 25 | − | 7500 | × | 7 25 | − | X | × | 7 25 |
= | 390789 25 | − | 2100 | − | X | × | 7 25 |
= | 338289 25 | − | 7 25 | X |
338289 25 | − | 7 25 | X | = | X |
- | 7 25 | X | − | X | = | - | 338289 25 |
- | 32 25 | X | = | - | 338289 25 |
338289 25 | = | 32 25 | X |
32 25 | X | = | 338289 25 |
X | = | 338289 25 | ÷ | 32 25 |
= | 338289 25 | × | 25 32 |
= | 338289 | × | 1 32 |
X | = | 338289 32 |
X | = | 10571.53125 |