( | 19 | + | x | ) | ÷ | ( | 25 | + | x | ) | = | 389 500 |
方程两边同时乘以: | ( | 25 | + | x | ) |
( | 19 | + | x | ) | = | 389 500 | ( | 25 | + | x | ) |
19 | + | x | = | 389 500 | ( | 25 | + | x | ) |
19 | + | x | = | 389 500 | × | 25 | + | 389 500 | x |
19 | + | x | = | 389 20 | + | 389 500 | x |
x | − | 389 500 | x | = | 389 20 | − | 19 |
111 500 | x | = | 389 20 | − | 19 |
111 500 | x | = | 9 20 |
x | = | 9 20 | ÷ | 111 500 |
= | 9 20 | × | 500 111 |
= | 3 | × | 25 37 |
x | = | 75 37 |
x | = | 2.027027 |