| ( | 42220311 100 | + | 28 25 | x | ) | ÷ | 113 100 | × | 13 100 | = | 4780931 100 | + | x |
| 方程左边 = | ( | 42220311 100 | + | 28 25 | x | ) | × | 13 113 |
| ( | 42220311 100 | + | 28 25 | x | ) | × | 13 113 | = | 4780931 100 | + | x |
| 方程左边 = | 42220311 100 | × | 13 113 | + | 28 25 | x | × | 13 113 |
| = | 548864043 11300 | + | 364 2825 | x |
548864043 11300 | + | 364 2825 | x | = | 4780931 100 | + | x |
364 2825 | x | − | x | = | 4780931 100 | − | 548864043 11300 |
| - | 2461 2825 | x | = | 4780931 100 | − | 548864043 11300 |
| - | 2461 2825 | x | = | - | 430942 565 |
430942 565 | = | 2461 2825 | x |
2461 2825 | x | = | 430942 565 |
| x | = | 430942 565 | ÷ | 2461 2825 |
| = | 430942 565 | × | 2825 2461 |
| = | 430942 113 | × | 565 2461 |
| x | = | 243482230 278093 |
| x | = | 2154710 2461 |
| x | = | 875.542462 |