| ( | 1 | − | a | ) | × | 16 100 | = | a |
| Left side of the equation = | 1 | × | 16 100 | − | a | × | 16 100 |
| = | 4 25 | − | a | × | 16 100 |
4 25 | − | 16 100 | a | = | a |
| - | 16 100 | a | − | a | = | - | 4 25 |
| - | 29 25 | a | = | - | 4 25 |
4 25 | = | 29 25 | a |
29 25 | a | = | 4 25 |
| a | = | 4 25 | ÷ | 29 25 |
| = | 4 25 | × | 25 29 |
| = | 4 | × | 1 29 |
| a | = | 4 29 |
| a | = | 0.137931 |