| y | + | 2 | y | + | 4 | + | 16 5 | × | 16 5 | + | 16 5 | × | 2 | y | = | 4 5 |
| Left side of the equation = | y | + | 2 | y | + | 4 | + | 256 25 | + | 32 5 | y |
| = | 47 5 | y | + | 356 25 |
47 5 | y | + | 356 25 | = | 4 5 |
47 5 | y | = | 4 5 | − | 356 25 |
47 5 | y | = | - | 336 25 |
| y | = | - | 336 25 | ÷ | 47 5 |
| = | - | 336 25 | × | 5 47 |
| = | - | 336 5 | × | 1 47 |
| y | = | - | 336 235 |
| y | = | - 1.429787 |