2 5 | x | ÷ | ( | 2 5 | x | + | 3 5 | ) | = | 3 500 |
方程两边同时乘以: | ( | 2 5 | x | + | 3 5 | ) |
2 5 | x | = | 3 500 | ( | 2 5 | x | + | 3 5 | ) |
2 5 | x | = | 3 500 | × | 2 5 | x | + | 3 500 | × | 3 5 |
2 5 | x | = | 3 1250 | x | + | 9 2500 |
2 5 | x | − | 3 1250 | x | = | 9 2500 |
497 1250 | x | = | 9 2500 |
x | = | 9 2500 | ÷ | 497 1250 |
= | 9 2500 | × | 1250 497 |
= | 9 2 | × | 1 497 |
x | = | 9 994 |
x | = | 0.009054 |