( | X | × | 9 200 | + | 120 | ) | × | 289 200 | = | 500 |
方程左边 = | X | × | 9 200 | × | 289 200 | + | 120 | × | 289 200 |
= | X | × | 2601 40000 | + | 867 5 |
2601 40000 | X | + | 867 5 | = | 500 |
2601 40000 | X | = | 500 | − | 867 5 |
2601 40000 | X | = | 1633 5 |
X | = | 1633 5 | ÷ | 2601 40000 |
= | 1633 5 | × | 40000 2601 |
= | 1633 | × | 8000 2601 |
X | = | 13064000 2601 |
X | = | 5022.683583 |