| X | − | X | × | 13 200 | − | ( | X | + | 1000000 | ) | × | 3 10000 | = | 1000000 |
| Left side of the equation = | 187 200 | X | − | ( | X | + | 1000000 | ) | × | 3 10000 |
187 200 | X | − | ( | X | + | 1000000 | ) | × | 3 10000 | = | 1000000 |
| Left side of the equation = | 187 200 | X | − | X | × | 3 10000 | − | 1000000 | × | 3 10000 |
| = | 187 200 | X | − | X | × | 3 10000 | − | 300 |
| = | 9347 10000 | X | − | 300 |
9347 10000 | X | − | 300 | = | 1000000 |
9347 10000 | X | = | 1000000 | + | 300 |
9347 10000 | X | = | 1000300 |
| X | = | 1000300 | ÷ | 9347 10000 |
| = | 1000300 | × | 10000 9347 |
| X | = | 10003000000 9347 |