| i | − | 8 100 | ÷ | 9 100 | − | 8 100 | = | 1 5 | − | 429 2000 | ÷ | 893 5000 | − | 429 2000 |
| Left side of the equation = | i | − | 8 9 | − | 8 100 |
| = | i | − | 218 225 |
| i | − | 218 225 | = | 1 5 | − | 429 2000 | ÷ | 893 5000 | − | 429 2000 |
| Right side of the equation = | 1 5 | − | 2145 1786 | − | 429 2000 |
| = | - | 2170897 1786000 |
| i | − | 218 225 | = | - | 2170897 1786000 |
| i | = | - | 2170897 1786000 | + | 218 225 |
| i | = | - | 3964153 16074000 |