X | × | 3 8 | + | ( | 1 | − | X | ) | ( | - | 3 25 | ) | = | 3 50 |
方程左边 = | 3 8 | X | + | 1 | ( | - | 3 25 | ) | − | X | ( | - | 3 25 | ) |
= | 3 8 | X | − | 1 | × | 3 25 | − | X | ( | - | 3 25 | ) |
= | 3 8 | X | − | 3 25 | − | X | ( | - | 3 25 | ) |
= | 3 8 | X | − | 3 25 | + | X | × | 3 25 |
= | 99 200 | X | − | 3 25 |
99 200 | X | − | 3 25 | = | 3 50 |
99 200 | X | = | 3 50 | + | 3 25 |
99 200 | X | = | 9 50 |
X | = | 9 50 | ÷ | 99 200 |
= | 9 50 | × | 200 99 |
= | 1 | × | 4 11 |
X | = | 4 11 |
X | = | 0.363636 |