| 1630 | i | × | 1 | − | 510 | i | × | 2 | = | 6 |
| Left side of the equation = | 1630 | i | − | 1020 | i |
| = | 610 | i |
| 610 | i | = | 6 |
| i | = | 6 | ÷ | 610 |
| = | 6 | × | 1 610 |
| = | 3 | × | 1 305 |
| i | = | 3 305 |
| i | = | 0.009836 |
| 1840 | i | × | 2 | − | 510 | i | × | 1 | = | 12 |
| Left side of the equation = | 3680 | i | − | 510 | i |
| = | 3170 | i |
| 3170 | i | = | 12 |
| i | = | 12 | ÷ | 3170 |
| = | 12 | × | 1 3170 |
| = | 6 | × | 1 1585 |
| i | = | 6 1585 |
| i | = | 0.003785 |