1 100 | + | 3 2 | ( | X | − | 1 100 | ) | = | 15 100 |
| Left side of the equation = | 1 100 | + | 3 2 | X | − | 3 2 | × | 1 100 |
| = | 1 100 | + | 3 2 | X | − | 3 200 |
| = | - | 1 200 | + | 3 2 | X |
| - | 1 200 | + | 3 2 | X | = | 15 100 |
3 2 | X | = | 15 100 | + | 1 200 |
3 2 | X | = | 31 200 |
| X | = | 31 200 | ÷ | 3 2 |
| = | 31 200 | × | 2 3 |
| = | 31 100 | × | 1 3 |
| X | = | 31 300 |
| X | = | 0.103333 |