3 | ÷ | 5 | × | t | ( | 4 | − | 9 | ÷ | 5 | × | t | ) | = | 4 | − | 4 | ÷ | 5 | × | t | ( | 3 | − | 3 | ÷ | 5 | × | t | ) |
方程左边 = | 3 5 | t | ( | 4 | − | 9 | ÷ | 5 | × | t | ) |
3 5 | t | ( | 4 | − | 9 | ÷ | 5 | × | t | ) | = | 4 | − | 4 | ÷ | 5 | × | t | ( | 3 | − | 3 | ÷ | 5 | × | t | ) |
方程左边 = | 3 5 | t | × | 4 | − | 3 5 | t | × | 9 | ÷ | 5 | × | t |
= | 12 5 | t | − | 27 25 | t | t |
12 5 | t | − | 27 25 | t | t | = | 4 | − | 4 | ÷ | 5 | × | t | ( | 3 | − | 3 | ÷ | 5 | × | t | ) |
方程右边 = | 4 | − | 4 5 | t | ( | 3 | − | 3 | ÷ | 5 | × | t | ) |
12 5 | t | − | 27 25 | t | t | = | 4 | − | 4 5 | t | ( | 3 | − | 3 | ÷ | 5 | × | t | ) |
方程右边 = | 4 | − | 4 5 | t | × | 3 | + | 4 5 | t | × | 3 | ÷ | 5 | × | t |
= | 4 | − | 12 5 | t | + | 12 25 | t | t |
12 5 | t | − | 27 25 | t | t | = | 4 | − | 12 5 | t | + | 12 25 | t | t |