( | 4 | − | 4 | ÷ | 5 | × | t | ) | × | 4 | = | ( | 8 | ÷ | 5 | × | t | − | 7 | ) | × | 3 |
方程左边 = | 4 | × | 4 | − | 4 | ÷ | 5 | × | t | × | 4 |
= | 16 | − | 16 5 | t |
16 | − | 16 5 | t | = | ( | 8 | ÷ | 5 | × | t | − | 7 | ) | × | 3 |
方程右边 = | 8 | ÷ | 5 | × | t | × | 3 | − | 7 | × | 3 |
= | 24 5 | t | − | 21 |
16 | − | 16 5 | t | = | 24 5 | t | − | 21 |
- | 16 5 | t | − | 24 5 | t | = | - | 21 | − | 16 |
- | 8 | t | = | - | 21 | − | 16 |
- | 8 | t | = | - | 37 |
37 | = | 8 | t |
8 | t | = | 37 |
t | = | 37 | ÷ | 8 |
= | 37 | × | 1 8 |
t | = | 37 8 |
t | = | 4.625 |