x | ÷ | ( | x | + | 2 | ) | = | 199 2500 |
方程两边同时乘以: | ( | x | + | 2 | ) |
x | = | 199 2500 | ( | x | + | 2 | ) |
x | = | 199 2500 | x | + | 199 2500 | × | 2 |
x | = | 199 2500 | x | + | 199 1250 |
x | − | 199 2500 | x | = | 199 1250 |
2301 2500 | x | = | 199 1250 |
x | = | 199 1250 | ÷ | 2301 2500 |
= | 199 1250 | × | 2500 2301 |
= | 199 | × | 2 2301 |
x | = | 398 2301 |
x | = | 0.172968 |