| ( | 26807 1000 | + | x | ) | × | 7 4 | = | 26807 500 | + | 72221 1000 | − | x |
| 方程左边 = | 26807 1000 | × | 7 4 | + | x | × | 7 4 |
| = | 187649 4000 | + | x | × | 7 4 |
187649 4000 | + | 7 4 | x | = | 26807 500 | + | 72221 1000 | − | x |
| 方程右边 = | 25167 200 | − | x |
187649 4000 | + | 7 4 | x | = | 25167 200 | − | x |
7 4 | x | + | x | = | 25167 200 | − | 187649 4000 |
11 4 | x | = | 25167 200 | − | 187649 4000 |
11 4 | x | = | 315691 4000 |
| x | = | 315691 4000 | ÷ | 11 4 |
| = | 315691 4000 | × | 4 11 |
| = | 315691 1000 | × | 1 11 |
| x | = | 315691 11000 |
| x | = | 28.699182 |