1200 | ÷ | ( | 1 | + | x | ) | + | 6000 | ÷ | ( | 1 | + | x | ) | × | 2 | + | 6000 | ÷ | ( | 1 | + | x | ) | × | 3 | = | 9000 |
方程两边同时乘以: | ( | 1 | + | x | ) |
1200 | + | 6000 | × | 2 | + | 6000 | × | 3 | = | 9000 | ( | 1 | + | x | ) |
1200 | + | 6000 | × | 2 | + | 6000 | × | 3 | = | 9000 | × | 1 | + | 9000 | x |
1200 | + | 12000 | + | 18000 | = | 9000 | + | 9000 | x |
31200 | = | 9000 | + | 9000 | x |
- | 9000 | x | = | 9000 | − | 31200 |
- | 9000 | x | = | - | 22200 |
22200 | = | 9000 | x |
9000 | x | = | 22200 |
x | = | 22200 | ÷ | 9000 |
= | 22200 | × | 1 9000 |
= | 37 | × | 1 15 |
x | = | 37 15 |
x | = | 2.466667 |