X | ÷ | 135 | − | ( | 40 | − | X | ) | ÷ | 500 | = | 1 4 |
方程左边 = | 1 135 | X | − | 40 | × | 1 500 | + | X | × | 1 500 |
= | 1 135 | X | − | 2 25 | + | X | × | 1 500 |
= | 127 13500 | X | − | 2 25 |
127 13500 | X | − | 2 25 | = | 1 4 |
127 13500 | X | = | 1 4 | + | 2 25 |
127 13500 | X | = | 33 100 |
X | = | 33 100 | ÷ | 127 13500 |
= | 33 100 | × | 13500 127 |
= | 33 | × | 135 127 |
X | = | 4455 127 |
X | = | 35.07874 |