X | − | 10 | ÷ | 10 | − | 11 10 | X | − | 12 | ÷ | 12 | = | 10 100 |
Left side of the equation = | X | − | 1 | − | 11 10 | X | − | 1 |
= | - | 1 10 | X | − | 2 |
- | 1 10 | X | − | 2 | = | 10 100 |
- | 1 10 | X | = | 10 100 | + | 2 |
- | 1 10 | X | = | 21 10 |
- | 21 10 | = | 1 10 | X |
1 10 | X | = | - | 21 10 |
X | = | - | 21 10 | ÷ | 1 10 |
= | - | 21 10 | × | 10 |
= | - | 21 | × | 1 |
X | = | - | 21 |