60 | ÷ | 90 | = | ( | 1 | + | 1 100 | x | ) | ÷ | ( | 1 | + | 4 | x | ) |
方程两边同时乘以: | ( | 1 | + | 4 | x | ) |
60 | ÷ | 90 | × | ( | 1 | + | 4 | x | ) | = | ( | 1 | + | 1 100 | x | ) |
60 | ÷ | 90 | × | 1 | + | 60 | ÷ | 90 | × | 4 | x | = | ( | 1 | + | 1 100 | x | ) |
60 | ÷ | 90 | × | 1 | + | 60 | ÷ | 90 | × | 4 | x | = | 1 | + | 1 100 | x |
2 3 | + | 8 3 | x | = | 1 | + | 1 100 | x |
8 3 | x | − | 1 100 | x | = | 1 | − | 2 3 |
797 300 | x | = | 1 | − | 2 3 |
797 300 | x | = | 1 3 |
x | = | 1 3 | ÷ | 797 300 |
= | 1 3 | × | 300 797 |
= | 1 | × | 100 797 |
x | = | 100 797 |
x | = | 0.125471 |