| 1 | − | x | − | x | × | 4 25 | − | ( | x | + | 4 25 | x | ) | × | 4 25 | = | 0 |
| Left side of the equation = | 1 | − | 29 25 | x | − | ( | x | + | 4 25 | x | ) | × | 4 25 |
| 1 | − | 29 25 | x | − | ( | x | + | 4 25 | x | ) | × | 4 25 | = | 0 |
| Left side of the equation = | 1 | − | 29 25 | x | − | x | × | 4 25 | − | 4 25 | x | × | 4 25 |
| = | 1 | − | 29 25 | x | − | x | × | 4 25 | − | 16 625 | x |
| = | 1 | − | 841 625 | x |
| 1 | − | 841 625 | x | = | 0 |
| - | 841 625 | x | = | 0 | − | 1 |
| - | 841 625 | x | = | - | 1 |
| 1 | = | 841 625 | x |
841 625 | x | = | 1 |
| x | = | 1 | ÷ | 841 625 |
| = | 1 | × | 625 841 |
| x | = | 625 841 |
| x | = | 0.743163 |