| ( | x | − | 13 100 | ) | ÷ | ( | 14 100 | − | 13 100 | ) | = | ( | 5 | − | 51317 10000 | ) | ÷ | ( | 6183 1250 | − | 51317 10000 | ) |
| 方程两边同时乘以: | ( | 14 100 | − | 13 100 | ) | , | ( | 6183 1250 | − | 51317 10000 | ) |
| ( | x | − | 13 100 | ) | ( | 6183 1250 | − | 51317 10000 | ) | = | ( | 5 | − | 51317 10000 | ) | ( | 14 100 | − | 13 100 | ) |
| x | ( | 6183 1250 | − | 51317 10000 | ) | − | 13 100 | ( | 6183 1250 | − | 51317 10000 | ) | = | ( | 5 | − | 51317 10000 | ) | ( | 14 100 | − | 13 100 | ) |
| x | ( | 6183 1250 | − | 51317 10000 | ) | − | 13 100 | ( | 6183 1250 | − | 51317 10000 | ) | = | 5 | ( | 14 100 | − | 13 100 | ) | − | 51317 10000 | ( | 14 100 | − | 13 100 | ) |
| x | × | 6183 1250 | − | x | × | 51317 10000 | − | 13 100 | ( | 6183 1250 | − | 51317 10000 | ) | = | 5 | ( | 14 100 | − | 13 100 | ) | − | 51317 10000 | ( | 14 100 | − | 13 100 | ) |
| x | × | 6183 1250 | − | x | × | 51317 10000 | − | 13 100 | ( | 6183 1250 | − | 51317 10000 | ) | = | 5 | × | 14 100 | − | 5 | × | 13 100 | − | 51317 10000 | ( | 14 100 | − | 13 100 | ) |
| x | × | 6183 1250 | − | x | × | 51317 10000 | − | 13 100 | ( | 6183 1250 | − | 51317 10000 | ) | = | 7 10 | − | 13 20 | − | 51317 10000 | ( | 14 100 | − | 13 100 | ) |
| - | 1853 10000 | x | − | 13 100 | ( | 6183 1250 | − | 51317 10000 | ) | = | 1 20 | − | 51317 10000 | ( | 14 100 | − | 13 100 | ) |
| - | 1853 10000 | x | − | 13 100 | × | 6183 1250 | + | 13 100 | × | 51317 10000 | = | 1 20 | − | 51317 10000 | ( | 14 100 | − | 13 100 | ) |
| - | 1853 10000 | x | − | 13 100 | × | 6183 1250 | + | 13 100 | × | 51317 10000 | = | 1 20 | − | 51317 10000 | × | 14 100 | + | 51317 10000 | × | 13 100 |
| - | 1853 10000 | x | − | 80379 125000 | + | 667121 1000000 | = | 1 20 | − | 359219 500000 | + | 667121 1000000 |