X | ÷ | 126 | − | 15 | ÷ | 200 | − | ( | 80 | − | X | ) | ÷ | 500 | = | 17 50 |
方程左边 = | X | × | 1 126 | − | 3 40 | − | ( | 80 | − | X | ) | × | 1 500 |
1 126 | X | − | 3 40 | − | ( | 80 | − | X | ) | × | 1 500 | = | 17 50 |
方程左边 = | 1 126 | X | − | 3 40 | − | 80 | × | 1 500 | + | X | × | 1 500 |
= | 1 126 | X | − | 3 40 | − | 4 25 | + | X | × | 1 500 |
= | 313 31500 | X | − | 47 200 |
313 31500 | X | − | 47 200 | = | 17 50 |
313 31500 | X | = | 17 50 | + | 47 200 |
313 31500 | X | = | 23 40 |
X | = | 23 40 | ÷ | 313 31500 |
= | 23 40 | × | 31500 313 |
= | 23 2 | × | 1575 313 |
X | = | 36225 626 |
X | = | 57.867412 |