18 | + | 91 10 | + | 269 5 | + | 62 5 | X | = | 47 2 | X | ÷ | 6 5 |
方程左边 = | 809 10 | + | 62 5 | X |
809 10 | + | 62 5 | X | = | 47 2 | X | ÷ | 6 5 |
方程右边 = | 235 12 | X |
809 10 | + | 62 5 | X | = | 235 12 | X |
62 5 | X | − | 235 12 | X | = | - | 809 10 |
- | 431 60 | X | = | - | 809 10 |
809 10 | = | 431 60 | X |
431 60 | X | = | 809 10 |
X | = | 809 10 | ÷ | 431 60 |
= | 809 10 | × | 60 431 |
= | 809 | × | 6 431 |
X | = | 4854 431 |
X | = | 11.262181 |