( | 13 | + | 1 | ) | ÷ | 7 4 | = | ( | 11 10 | − | x | ) | ÷ | x | × | ( | 47 40 | − | x | ) |
方程两边同时乘以: | x |
( | 13 | + | 1 | ) | ÷ | 7 4 | × | x | = | ( | 11 10 | − | x | ) | ( | 47 40 | − | x | ) |
13 | ÷ | 7 4 | × | x | + | 1 | ÷ | 7 4 | × | x | = | ( | 11 10 | − | x | ) | ( | 47 40 | − | x | ) |
13 | ÷ | 7 4 | × | x | + | 1 | ÷ | 7 4 | × | x | = | 11 10 | ( | 47 40 | − | x | ) | − | x | ( | 47 40 | − | x | ) |
52 7 | x | + | 4 7 | x | = | 11 10 | ( | 47 40 | − | x | ) | − | x | ( | 47 40 | − | x | ) |
8 | x | = | 11 10 | ( | 47 40 | − | x | ) | − | x | ( | 47 40 | − | x | ) |
8 | x | = | 11 10 | × | 47 40 | − | 11 10 | x | − | x | ( | 47 40 | − | x | ) |
8 | x | = | 517 400 | − | 11 10 | x | − | x | ( | 47 40 | − | x | ) |
8 | x | = | 517 400 | − | 11 10 | x | − | x | × | 47 40 | + | x | x |
8 | x | = | 517 400 | − | 91 40 | x | + | x | x |