| ( | 713 10 | − | 727 10 | ) | ÷ | ( | 8183 100 | − | 7971 100 | ) | = | ( | 7267 100 | − | 727 10 | ) | ÷ | ( | x | − | 7971 100 | ) |
| 方程两边同时乘以: | ( | 8183 100 | − | 7971 100 | ) | , | ( | x | − | 7971 100 | ) |
| ( | 713 10 | − | 727 10 | ) | ( | x | − | 7971 100 | ) | = | ( | 7267 100 | − | 727 10 | ) | ( | 8183 100 | − | 7971 100 | ) |
713 10 | ( | x | − | 7971 100 | ) | − | 727 10 | ( | x | − | 7971 100 | ) | = | ( | 7267 100 | − | 727 10 | ) | ( | 8183 100 | − | 7971 100 | ) |
713 10 | ( | x | − | 7971 100 | ) | − | 727 10 | ( | x | − | 7971 100 | ) | = | 7267 100 | ( | 8183 100 | − | 7971 100 | ) | − | 727 10 | ( | 8183 100 | − | 7971 100 | ) |
713 10 | x | − | 713 10 | × | 7971 100 | − | 727 10 | ( | x | − | 7971 100 | ) | = | 7267 100 | ( | 8183 100 | − | 7971 100 | ) | − | 727 10 | ( | 8183 100 | − | 7971 100 | ) |
713 10 | x | − | 713 10 | × | 7971 100 | − | 727 10 | ( | x | − | 7971 100 | ) | = | 7267 100 | × | 8183 100 | − | 7267 100 | × | 7971 100 | − | 727 10 | ( | 8183 100 | − | 7971 100 | ) |
713 10 | x | − | 5683323 1000 | − | 727 10 | ( | x | − | 7971 100 | ) | = | 59465861 10000 | − | 57925257 10000 | − | 727 10 | ( | 8183 100 | − | 7971 100 | ) |
713 10 | x | − | 5683323 1000 | − | 727 10 | ( | x | − | 7971 100 | ) | = | 385151 2500 | − | 727 10 | ( | 8183 100 | − | 7971 100 | ) |
713 10 | x | − | 5683323 1000 | − | 727 10 | x | + | 727 10 | × | 7971 100 | = | 385151 2500 | − | 727 10 | ( | 8183 100 | − | 7971 100 | ) |
713 10 | x | − | 5683323 1000 | − | 727 10 | x | + | 727 10 | × | 7971 100 | = | 385151 2500 | − | 727 10 | × | 8183 100 | + | 727 10 | × | 7971 100 |
713 10 | x | − | 5683323 1000 | − | 727 10 | x | + | 5794917 1000 | = | 385151 2500 | − | 5949041 1000 | + | 5794917 1000 |