| ( | 8 | x | − | 50 | ) | ÷ | 3 | − | ( | 10 | x | + | 40 | ) | ÷ | 5 | = | 10 |
| Left side of the equation = | 8 | x | × | 1 3 | − | 50 | × | 1 3 | − | ( | 10 | x | + | 40 | ) | × | 1 5 |
| = | 8 3 | x | − | 50 3 | − | ( | 10 | x | + | 40 | ) | × | 1 5 |
| = | 8 3 | x | − | 50 3 | − | 10 | x | × | 1 5 | − | 40 | × | 1 5 |
| = | 8 3 | x | − | 50 3 | − | 2 | x | − | 8 |
| = | 2 3 | x | − | 74 3 |
2 3 | x | − | 74 3 | = | 10 |
2 3 | x | = | 10 | + | 74 3 |
2 3 | x | = | 104 3 |
| x | = | 104 3 | ÷ | 2 3 |
| = | 104 3 | × | 3 2 |
| = | 52 | × | 1 |
| x | = | 52 |