1200 | ÷ | x | − | 1200 | ÷ | ( | 1 | + | 50 100 | ) | × | x | = | 4 |
方程两边同时乘以: | x |
1200 | − | 1200 | ÷ | ( | 1 | + | 50 100 | ) | × | x | x | = | 4 | x |
方程两边同时乘以: | ( | 1 | + | 50 100 | ) |
1200 | ( | 1 | + | 50 100 | ) | − | 1200 | x | x | = | 4 | x | ( | 1 | + | 50 100 | ) |
1200 | × | 1 | + | 1200 | × | 50 100 | − | 1200 | x | x | = | 4 | x | ( | 1 | + | 50 100 | ) |
1200 | × | 1 | + | 1200 | × | 50 100 | − | 1200 | x | x | = | 4 | x | × | 1 | + | 4 | x | × | 50 100 |
1200 | + | 600 | − | 1200 | x | x | = | 4 | x | + | 2 | x |
1800 | − | 1200 | x | x | = | 6 | x |