| ( | 1371657 20 | + | X | ) | ÷ | ( | 5721393 25 | + | 1371657 20 | + | X | ) | = | 1 2 |
| 方程两边同时乘以: | ( | 5721393 25 | + | 1371657 20 | + | X | ) |
| ( | 1371657 20 | + | X | ) | = | 1 2 | ( | 5721393 25 | + | 1371657 20 | + | X | ) |
1371657 20 | + | X | = | 1 2 | ( | 5721393 25 | + | 1371657 20 | + | X | ) |
1371657 20 | + | X | = | 1 2 | × | 5721393 25 | + | 1 2 | × | 1371657 20 | + | 1 2 | X |
1371657 20 | + | X | = | 5721393 50 | + | 1371657 40 | + | 1 2 | X |
1371657 20 | + | X | = | 29743857 200 | + | 1 2 | X |
| X | − | 1 2 | X | = | 29743857 200 | − | 1371657 20 |
1 2 | X | = | 29743857 200 | − | 1371657 20 |
1 2 | X | = | 16027287 200 |
| X | = | 16027287 200 | ÷ | 1 2 |
| = | 16027287 200 | × | 2 |
| = | 16027287 100 | × | 1 |
| X | = | 16027287 100 |
| X | = | 160272.87 |