| ( | 3 | x | − | 11 10 | ) | ÷ | 2 5 | − | ( | 4 | x | − | 1 5 | ) | ÷ | 3 10 | = | 3 50 | ÷ | ( | 4 25 | − | 7 10 | x | ) |
| 方程两边同时乘以: | ( | 4 25 | − | 7 10 | x | ) |
| ( | 3 | x | − | 11 10 | ) | ÷ | 2 5 | × | ( | 4 25 | − | 7 10 | x | ) | − | ( | 4 | x | − | 1 5 | ) | ÷ | 3 10 | × | ( | 4 25 | − | 7 10 | x | ) | = | 3 50 |
| 3 | x | ÷ | 2 5 | × | ( | 4 25 | − | 7 10 | x | ) | − | 11 10 | ÷ | 2 5 | × | ( | 4 25 | − | 7 10 | x | ) | − | ( | 4 | x | − | 1 5 | ) | ÷ | 3 10 | × | ( | 4 25 | − | 7 10 | x | ) | = | 3 50 |
15 2 | x | ( | 4 25 | − | 7 10 | x | ) | − | 11 4 | ( | 4 25 | − | 7 10 | x | ) | − | ( | 4 | x | − | 1 5 | ) | × | 10 3 | ( | 4 25 | − | 7 10 | x | ) | = | 3 50 |
15 2 | x | × | 4 25 | − | 15 2 | x | × | 7 10 | x | − | 11 4 | ( | 4 25 | − | 7 10 | x | ) | − | ( | 4 | x | − | 1 5 | ) | × | 10 3 | ( | 4 25 | − | 7 10 | x | ) | = | 3 50 |
6 5 | x | − | 21 4 | x | x | − | 11 4 | ( | 4 25 | − | 7 10 | x | ) | − | ( | 4 | x | − | 1 5 | ) | × | 10 3 | ( | 4 25 | − | 7 10 | x | ) | = | 3 50 |
6 5 | x | − | 21 4 | x | x | − | 11 4 | × | 4 25 | + | 11 4 | × | 7 10 | x | − | ( | 4 | x | − | 1 5 | ) | × | 10 3 | = | 3 50 |
6 5 | x | − | 21 4 | x | x | − | 11 25 | + | 77 40 | x | − | ( | 4 | x | − | 1 5 | ) | × | 10 3 | ( | 4 25 | − | 7 10 | x | ) | = | 3 50 |
25 8 | x | − | 21 4 | x | x | − | 11 25 | − | ( | 4 | x | − | 1 5 | ) | × | 10 3 | ( | 4 25 | − | 7 10 | x | ) | = | 3 50 |
25 8 | x | − | 21 4 | x | x | − | 11 25 | − | 4 | x | × | 10 3 | ( | 4 25 | − | 7 10 | x | ) | + | 1 5 | × | 10 3 | = | 3 50 |
25 8 | x | − | 21 4 | x | x | − | 11 25 | − | 40 3 | x | ( | 4 25 | − | 7 10 | x | ) | + | 2 3 | ( | 4 25 | − | 7 10 | x | ) | = | 3 50 |
25 8 | x | − | 21 4 | x | x | − | 11 25 | − | 40 3 | x | × | 4 25 | + | 40 3 | x | × | 7 10 | = | 3 50 |
25 8 | x | − | 21 4 | x | x | − | 11 25 | − | 32 15 | x | + | 28 3 | x | x | + | 2 3 | = | 3 50 |
119 120 | x | − | 21 4 | x | x | − | 11 25 | + | 28 3 | x | x | + | 2 3 | ( | 4 25 | − | 7 10 | x | ) | = | 3 50 |
119 120 | x | − | 21 4 | x | x | − | 11 25 | + | 28 3 | x | x | + | 2 3 | × | 4 25 | − | 2 3 | = | 3 50 |
119 120 | x | − | 21 4 | x | x | − | 11 25 | + | 28 3 | x | x | + | 8 75 | − | 7 15 | x | = | 3 50 |
21 40 | x | − | 21 4 | x | x | − | 1 3 | + | 28 3 | x | x | = | 3 50 |