| ( | x | − | 448 125 | ) | × | 400 | − | 1 10 | = | 2 |
| Left side of the equation = | x | × | 400 | − | 448 125 | × | 400 | − | 1 10 |
| = | x | × | 400 | − | 7168 5 | − | 1 10 |
| = | 400 | x | − | 14337 10 |
| 400 | x | − | 14337 10 | = | 2 |
| 400 | x | = | 2 | + | 14337 10 |
| 400 | x | = | 14357 10 |
| x | = | 14357 10 | ÷ | 400 |
| = | 14357 10 | × | 1 400 |
| x | = | 14357 4000 |
| x | = | 3.58925 |