| ( | 1 5 | + | x | ) | ÷ | ( | 3 10 | + | x | ) | = | 867961 1000000 |
| 方程两边同时乘以: | ( | 3 10 | + | x | ) |
| ( | 1 5 | + | x | ) | = | 867961 1000000 | ( | 3 10 | + | x | ) |
1 5 | + | x | = | 867961 1000000 | ( | 3 10 | + | x | ) |
1 5 | + | x | = | 867961 1000000 | × | 3 10 | + | 867961 1000000 | x |
1 5 | + | x | = | 2603883 10000000 | + | 867961 1000000 | x |
| x | − | 867961 1000000 | x | = | 2603883 10000000 | − | 1 5 |
132039 1000000 | x | = | 2603883 10000000 | − | 1 5 |
132039 1000000 | x | = | 603883 10000000 |
| x | = | 603883 10000000 | ÷ | 132039 1000000 |
| = | 603883 10000000 | × | 1000000 132039 |
| = | 603883 10 | × | 1 132039 |
| x | = | 603883 1320390 |
| x | = | 0.457352 |