| ( | 2 | × | 9 10 | + | x | ) | × | 51 50 | = | 2 | + | x |
| Left side of the equation = | 2 | × | 9 10 | × | 51 50 | + | x | × | 51 50 |
| = | 459 250 | + | x | × | 51 50 |
459 250 | + | 51 50 | x | = | 2 | + | x |
51 50 | x | − | x | = | 2 | − | 459 250 |
1 50 | x | = | 2 | − | 459 250 |
1 50 | x | = | 41 250 |
| x | = | 41 250 | ÷ | 1 50 |
| = | 41 250 | × | 50 |
| = | 41 5 | × | 1 |
| x | = | 41 5 |
| x | = | 8.2 |