( | 5000 | × | 12 | × | 9 10 | − | 70 100 | × | 130 | X | × | 32 500 | ) | ÷ | ( | 30 100 | × | 130 | X | + | 5 100 | × | 130 | X | ) | = | 19 500 |
方程两边同时乘以: | ( | 30 100 | × | 130 | X | + | 5 100 | × | 130 | X | ) |
( | 5000 | × | 12 | × | 9 10 | − | 70 100 | × | 130 | X | × | 32 500 | ) | = | 19 500 | ( | 30 100 | × | 130 | X | + | 5 100 | × | 130 | X | ) |
5000 | × | 12 | × | 9 10 | − | 70 100 | × | 130 | X | × | 32 500 | = | 19 500 | ( | 30 100 | × | 130 | X | + | 5 100 | × | 130 | X | ) |
5000 | × | 12 | × | 9 10 | − | 70 100 | × | 130 | X | × | 32 500 | = | 19 500 | × | 30 100 | × | 130 | X | + | 19 500 | × | 5 100 | × | 130 | X |
54000 | − | 728 125 | X | = | 741 500 | X | + | 247 1000 | X |
54000 | − | 728 125 | X | = | 1729 1000 | X |
- | 728 125 | X | − | 1729 1000 | X | = | - | 54000 |
- | 7553 1000 | X | = | - | 54000 |
54000 | = | 7553 1000 | X |
7553 1000 | X | = | 54000 |
X | = | 54000 | ÷ | 7553 1000 |
= | 54000 | × | 1000 7553 |
X | = | 54000000 7553 |
X | = | 7149.477029 |