113 100 | x | ÷ | 13 100 | + | 103 100 | ( | 720127 20 | − | x | ) | ÷ | 3 100 | = | 9472807 25 |
| 方程左边 = | 113 13 | x | + | 103 3 | ( | 720127 20 | − | x | ) |
113 13 | x | + | 103 3 | ( | 720127 20 | − | x | ) | = | 9472807 25 |
| 方程左边 = | 113 13 | x | + | 103 3 | × | 720127 20 | − | 103 3 | x |
| = | 113 13 | x | + | 74173081 60 | − | 103 3 | x |
| = | - | 1000 39 | x | + | 74173081 60 |
| - | 1000 39 | x | + | 74173081 60 | = | 9472807 25 |
| - | 1000 39 | x | = | 9472807 25 | − | 74173081 60 |
| - | 1000 39 | x | = | - | 257191721 300 |
257191721 300 | = | 1000 39 | x |
1000 39 | x | = | 257191721 300 |
| x | = | 257191721 300 | ÷ | 1000 39 |
| = | 257191721 300 | × | 39 1000 |
| = | 257191721 100 | × | 13 1000 |
| x | = | 3343492373 100000 |
| x | = | 33434.92373 |