( | X | − | 500 | ) | ( | 1 | − | 25 100 | ) | ÷ | 400 | = | ( | X | − | 500 | ) | ( | 1 | − | 25 100 | ) | − | 850 | × | 12 100 | ÷ | 300 |
方程左边 = | X | ( | 1 | − | 25 100 | ) | × | 1 400 | − | 500 | ( | 1 | − | 25 100 | ) | × | 1 400 |
= | X | ( | 1 | − | 25 100 | ) | × | 1 400 | − | 5 4 | ( | 1 | − | 25 100 | ) |
= | X | × | 1 | × | 1 400 | − | X | × | 25 100 | × | 1 400 | − | 5 4 | ( | 1 | − | 25 100 | ) |
= | X | × | 1 400 | − | X | × | 1 1600 | − | 5 4 | ( | 1 | − | 25 100 | ) |
= | 3 1600 | X | − | 5 4 | ( | 1 | − | 25 100 | ) |
= | 3 1600 | X | − | 5 4 | × | 1 | + | 5 4 | × | 25 100 |
= | 3 1600 | X | − | 5 4 | + | 5 16 |
= | 3 1600 | X | − | 15 16 |
3 1600 | X | − | 15 16 | = | ( | X | − | 500 | ) | ( | 1 | − | 25 100 | ) | − | 850 | × | 12 100 | ÷ | 300 |
方程右边 = | ( | X | − | 500 | ) | ( | 1 | − | 25 100 | ) | − | 17 50 |
3 1600 | X | − | 15 16 | = | ( | X | − | 500 | ) | ( | 1 | − | 25 100 | ) | − | 17 50 |
方程右边 = | X | ( | 1 | − | 25 100 | ) | − | 500 | ( | 1 | − | 25 100 | ) | − | 17 50 |
= | X | × | 1 | − | X | × | 25 100 | − | 500 | ( | 1 | − | 25 100 | ) | − | 17 50 |
= | 3 4 | X | − | 500 | ( | 1 | − | 25 100 | ) | − | 17 50 |
= | 3 4 | X | − | 500 | × | 1 | + | 500 | × | 25 100 | − | 17 50 |
= | 3 4 | X | − | 500 | + | 125 | − | 17 50 |
= | 3 4 | X | − | 18767 50 |
3 1600 | X | − | 15 16 | = | 3 4 | X | − | 18767 50 |
3 1600 | X | − | 3 4 | X | = | - | 18767 50 | + | 15 16 |
- | 1197 1600 | X | = | - | 18767 50 | + | 15 16 |
- | 1197 1600 | X | = | - | 149761 400 |
149761 400 | = | 1197 1600 | X |
1197 1600 | X | = | 149761 400 |
X | = | 149761 400 | ÷ | 1197 1600 |
= | 149761 400 | × | 1600 1197 |
= | 149761 | × | 4 1197 |
X | = | 599044 1197 |
X | = | 500.45447 |