( | 40 | − | 1 2 | x | ) | ( | 48 | + | 4 | ) | = | 512 |
方程左边 = | 40 | ( | 48 | + | 4 | ) | − | 1 2 | x | ( | 48 | + | 4 | ) |
= | 40 | × | 48 | + | 40 | × | 4 | − | 1 2 | x | ( | 48 | + | 4 | ) |
= | 1920 | + | 160 | − | 1 2 | x | ( | 48 | + | 4 | ) |
= | 2080 | − | 1 2 | x | ( | 48 | + | 4 | ) |
= | 2080 | − | 1 2 | x | × | 48 | − | 1 2 | x | × | 4 |
= | 2080 | − | 24 | x | − | 2 | x |
= | 2080 | − | 26 | x |
2080 | − | 26 | x | = | 512 |
- | 26 | x | = | 512 | − | 2080 |
- | 26 | x | = | - | 1568 |
1568 | = | 26 | x |
26 | x | = | 1568 |
x | = | 1568 | ÷ | 26 |
= | 1568 | × | 1 26 |
= | 784 | × | 1 13 |
x | = | 784 13 |
x | = | 60.307692 |