| ( | 3 10 | + | x | ) | ÷ | ( | 2 5 | + | x | ) | = | 8862753 10000000 |
| 方程两边同时乘以: | ( | 2 5 | + | x | ) |
| ( | 3 10 | + | x | ) | = | 8862753 10000000 | ( | 2 5 | + | x | ) |
3 10 | + | x | = | 8862753 10000000 | ( | 2 5 | + | x | ) |
3 10 | + | x | = | 8862753 10000000 | × | 2 5 | + | 8862753 10000000 | x |
3 10 | + | x | = | 8862753 25000000 | + | 8862753 10000000 | x |
| x | − | 8862753 10000000 | x | = | 8862753 25000000 | − | 3 10 |
1137247 10000000 | x | = | 8862753 25000000 | − | 3 10 |
1137247 10000000 | x | = | 1362753 25000000 |
| x | = | 1362753 25000000 | ÷ | 1137247 10000000 |
| = | 1362753 25000000 | × | 10000000 1137247 |
| = | 1362753 5 | × | 2 1137247 |
| x | = | 2725506 5686235 |
| x | = | 0.479316 |