| ( | 8 100 | × | 100 | ÷ | 55 | × | ( | 1 | − | x | ) | ) | ÷ | ( | 1 | − | 8 100 | × | 100 | ÷ | 55 | × | ( | 1 | − | x | ) | ) | = | 10 100 |
| Multiply both sides of the equation by: | ( | 1 | − | 8 100 | × | 100 | ÷ | 55 | × | ( | 1 | − | x | ) | ) |
| ( | 8 100 | × | 100 | ÷ | 55 | × | ( | 1 | − | x | ) | ) | = | 10 100 | ( | 1 | − | 8 100 | × | 100 | ÷ | 55 | × | ( | 1 | − | x | ) | ) |
8 100 | × | 100 | ÷ | 55 | × | ( | 1 | − | x | ) | = | 10 100 | ( | 1 | − | 8 100 | × | 100 | ÷ | 55 | × | ( | 1 | − | x | ) | ) |
8 100 | × | 100 | ÷ | 55 | × | ( | 1 | − | x | ) | = | 10 100 | × | 1 | − | 10 100 | × | 8 100 | × | 100 | ÷ | 55 | × | ( | 1 | − | x | ) |
8 55 | ( | 1 | − | x | ) | = | 1 10 | − | 4 275 | ( | 1 | − | x | ) |
8 55 | × | 1 | − | 8 55 | x | = | 1 10 | − | 4 275 | ( | 1 | − | x | ) |
8 55 | × | 1 | − | 8 55 | x | = | 1 10 | − | 4 275 | × | 1 | + | 4 275 | x |
8 55 | − | 8 55 | x | = | 1 10 | − | 4 275 | + | 4 275 | x |
8 55 | − | 8 55 | x | = | 47 550 | + | 4 275 | x |
| - | 8 55 | x | − | 4 275 | x | = | 47 550 | − | 8 55 |
| - | 4 25 | x | = | 47 550 | − | 8 55 |
| - | 4 25 | x | = | - | 3 50 |
3 50 | = | 4 25 | x |
4 25 | x | = | 3 50 |
| x | = | 3 50 | ÷ | 4 25 |
| = | 3 50 | × | 25 4 |
| = | 3 2 | × | 1 4 |
| x | = | 3 8 |
| x | = | 0.375 |