| ( | 25343 1000 | + | x | ) | × | 53 20 | = | 50687 1000 | + | 1727 25 | − | x |
| 方程左边 = | 25343 1000 | × | 53 20 | + | x | × | 53 20 |
| = | 1343179 20000 | + | x | × | 53 20 |
1343179 20000 | + | 53 20 | x | = | 50687 1000 | + | 1727 25 | − | x |
| 方程右边 = | 119767 1000 | − | x |
1343179 20000 | + | 53 20 | x | = | 119767 1000 | − | x |
53 20 | x | + | x | = | 119767 1000 | − | 1343179 20000 |
73 20 | x | = | 119767 1000 | − | 1343179 20000 |
73 20 | x | = | 1052161 20000 |
| x | = | 1052161 20000 | ÷ | 73 20 |
| = | 1052161 20000 | × | 20 73 |
| = | 1052161 1000 | × | 1 73 |
| x | = | 1052161 73000 |
| x | = | 14.413164 |