4400 | ÷ | x | + | 20000 | ÷ | ( | x | + | 112 5 | ) | = | 150 |
方程两边同时乘以: | x |
4400 | + | 20000 | ÷ | ( | x | + | 112 5 | ) | × | x | = | 150 | x |
方程两边同时乘以: | ( | x | + | 112 5 | ) |
4400 | ( | x | + | 112 5 | ) | + | 20000 | x | = | 150 | x | ( | x | + | 112 5 | ) |
4400 | x | + | 4400 | × | 112 5 | + | 20000 | x | = | 150 | x | ( | x | + | 112 5 | ) |
4400 | x | + | 4400 | × | 112 5 | + | 20000 | x | = | 150 | x | x | + | 150 | x | × | 112 5 |
4400 | x | + | 98560 | + | 20000 | x | = | 150 | x | x | + | 3360 | x |
24400 | x | + | 98560 | = | 150 | x | x | + | 3360 | x |