| ( | 1 100 | + | 1 100 | x | ) | ÷ | ( | ( | 3 10 | − | 1 10 | x | ) | ( | 1 10 | − | 1 10 | x | ) | ) | = | 3 |
| Multiply both sides of the equation by: | ( | ( | 3 10 | − | 1 10 | x | ) | ( | 1 10 | − | 1 10 | x | ) | ) |
| ( | 1 100 | + | 1 100 | x | ) | = | 3 | ( | ( | 3 10 | − | 1 10 | x | ) | ( | 1 10 | − | 1 10 | x | ) | ) |
1 100 | + | 1 100 | x | = | 3 | ( | ( | 3 10 | − | 1 10 | x | ) | ( | 1 10 | − | 1 10 | x | ) | ) |
1 100 | + | 1 100 | x | = | 3 | ( | 3 10 | − | 1 10 | x | ) | ( | 1 10 | − | 1 10 | x | ) |
1 100 | + | 1 100 | x | = | 3 | × | 3 10 | ( | 1 10 | − | 1 10 | x | ) | − | 3 | × | 1 10 | x | ( | 1 10 | − | 1 10 | x | ) |
1 100 | + | 1 100 | x | = | 9 10 | ( | 1 10 | − | 1 10 | x | ) | − | 3 10 | x | ( | 1 10 | − | 1 10 | x | ) |
1 100 | + | 1 100 | x | = | 9 10 | × | 1 10 | − | 9 10 | × | 1 10 | x | − | 3 10 | x | ( | 1 10 | − | 1 10 | x | ) |
1 100 | + | 1 100 | x | = | 9 100 | − | 9 100 | x | − | 3 10 | x | ( | 1 10 | − | 1 10 | x | ) |
1 100 | + | 1 100 | x | = | 9 100 | − | 9 100 | x | − | 3 10 | x | × | 1 10 | + | 3 10 | x | × | 1 10 | x |
1 100 | + | 1 100 | x | = | 9 100 | − | 9 100 | x | − | 3 100 | x | + | 3 100 | x | x |
1 100 | + | 1 100 | x | = | 9 100 | − | 3 25 | x | + | 3 100 | x | x |