| i | − | 8 100 | ÷ | 9 100 | − | 8 100 | = | ( | 5 | − | 4661 1000 | ) | ÷ | ( | 1401 250 | − | 4661 1000 | ) |
| 方程两边同时乘以: | ( | 1401 250 | − | 4661 1000 | ) |
| i | ( | 1401 250 | − | 4661 1000 | ) | − | 8 100 | ÷ | 9 100 | × | ( | 1401 250 | − | 4661 1000 | ) | − | 8 100 | ( | 1401 250 | − | 4661 1000 | ) | = | ( | 5 | − | 4661 1000 | ) |
| i | × | 1401 250 | − | i | × | 4661 1000 | − | 8 100 | ÷ | 9 100 | × | ( | 1401 250 | − | 4661 1000 | ) | − | 8 100 | ( | 1401 250 | − | 4661 1000 | ) | = | ( | 5 | − | 4661 1000 | ) |
| i | × | 1401 250 | − | i | × | 4661 1000 | − | 8 100 | ÷ | 9 100 | × | ( | 1401 250 | − | 4661 1000 | ) | − | 8 100 | ( | 1401 250 | − | 4661 1000 | ) | = | 5 | − | 4661 1000 |
| i | × | 1401 250 | − | i | × | 4661 1000 | − | 8 9 | ( | 1401 250 | − | 4661 1000 | ) | − | 8 100 | ( | 1401 250 | − | 4661 1000 | ) | = | 5 | − | 4661 1000 |
943 1000 | i | − | 8 9 | ( | 1401 250 | − | 4661 1000 | ) | − | 8 100 | ( | 1401 250 | − | 4661 1000 | ) | = | 339 1000 |
943 1000 | i | − | 8 9 | × | 1401 250 | + | 8 9 | × | 4661 1000 | − | 8 100 | ( | 1401 250 | − | 4661 1000 | ) | = | 339 1000 |
943 1000 | i | − | 1868 375 | + | 4661 1125 | − | 8 100 | ( | 1401 250 | − | 4661 1000 | ) | = | 339 1000 |
943 1000 | i | − | 943 1125 | − | 8 100 | ( | 1401 250 | − | 4661 1000 | ) | = | 339 1000 |
943 1000 | i | − | 943 1125 | − | 8 100 | × | 1401 250 | + | 8 100 | × | 4661 1000 | = | 339 1000 |
943 1000 | i | − | 943 1125 | − | 1401 3125 | + | 4661 12500 | = | 339 1000 |
943 1000 | i | − | 102787 112500 | = | 339 1000 |
943 1000 | i | = | 339 1000 | + | 102787 112500 |
943 1000 | i | = | 281849 225000 |
| i | = | 281849 225000 | ÷ | 943 1000 |
| = | 281849 225000 | × | 1000 943 |
| = | 281849 225 | × | 1 943 |
| i | = | 281849 212175 |
| i | = | 1.32838 |