450 | ÷ | x | − | 450 | ÷ | ( | x | − | 5 | ) | = | 1 |
方程两边同时乘以: | x |
450 | − | 450 | ÷ | ( | x | − | 5 | ) | × | x | = | 1 | x |
方程两边同时乘以: | ( | x | − | 5 | ) |
450 | ( | x | − | 5 | ) | − | 450 | x | = | 1 | x | ( | x | − | 5 | ) |
450 | x | − | 450 | × | 5 | − | 450 | x | = | 1 | x | ( | x | − | 5 | ) |
450 | x | − | 450 | × | 5 | − | 450 | x | = | 1 | x | x | − | 1 | x | × | 5 |
450 | x | − | 2250 | − | 450 | x | = | 1 | x | x | − | 5 | x |
0 | x | − | 2250 | = | 1 | x | x | − | 5 | x |