30000 | ÷ | ( | x | + | 66 | ) | + | 10000 | ÷ | x | = | 150 |
方程两边同时乘以: | ( | x | + | 66 | ) |
30000 | + | 10000 | ÷ | x | × | ( | x | + | 66 | ) | = | 150 | ( | x | + | 66 | ) |
30000 | + | 10000 | ÷ | x | × | x | + | 10000 | ÷ | x | × | 66 | = | 150 | ( | x | + | 66 | ) |
30000 | + | 10000 | ÷ | x | × | x | + | 10000 | ÷ | x | × | 66 | = | 150 | x | + | 150 | × | 66 |
30000 | + | 10000 | ÷ | x | × | x | + | 660000 | ÷ | x | = | 150 | x | + | 9900 |
方程两边同时乘以: | x |
30000 | x | + | 10000 | ÷ | 1 | × | 1 | x | + | 660000 | = | 150 | x | x | + | 9900 | x |