| ( | 3 5 | − | x | ÷ | 3 | ) | ( | 2 5 | − | x | ÷ | 3 | ) | = | 1 100 |
| Left side of the equation = | 3 5 | ( | 2 5 | − | x | ÷ | 3 | ) | − | x | ÷ | 3 | × | ( | 2 5 | − | x | ÷ | 3 | ) |
| = | 3 5 | × | 2 5 | − | 3 5 | x | ÷ | 3 | − | x | × | 1 3 | ( | 2 5 | − | x | ÷ | 3 | ) |
| = | 6 25 | − | 1 5 | x | − | x | × | 1 3 | ( | 2 5 | − | x | ÷ | 3 | ) |
| = | 6 25 | − | 1 5 | x | − | x | × | 1 3 | × | 2 5 | + | x | × | 1 3 | x | ÷ | 3 |
| = | 6 25 | − | 1 5 | x | − | x | × | 2 15 | + | x | × | 1 9 | x |
| = | 6 25 | − | 1 3 | x | + | x | × | 1 9 | x |
6 25 | − | 1 3 | x | + | x | × | 1 9 | x | = | 1 100 |