| ( | 7 10 | + | ( | x | × | 5 | ) | ) | ÷ | 6 | = | 11 20 |
| Left side of the equation = | 7 10 | × | 1 6 | + | ( | x | × | 5 | ) | × | 1 6 |
| = | 7 60 | + | ( | x | × | 5 | ) | × | 1 6 |
| = | 7 60 | + | x | × | 5 | × | 1 6 |
| = | 7 60 | + | x | × | 5 6 |
7 60 | + | 5 6 | x | = | 11 20 |
5 6 | x | = | 11 20 | − | 7 60 |
5 6 | x | = | 13 30 |
| x | = | 13 30 | ÷ | 5 6 |
| = | 13 30 | × | 6 5 |
| = | 13 5 | × | 1 5 |
| x | = | 13 25 |
| x | = | 0.52 |