| X | − | X | × | 1 20 | − | ( | X | + | 501373 2 | ) | × | 3 10000 | = | 501373 2 |
| Left side of the equation = | 19 20 | X | − | ( | X | + | 501373 2 | ) | × | 3 10000 |
19 20 | X | − | ( | X | + | 501373 2 | ) | × | 3 10000 | = | 501373 2 |
| Left side of the equation = | 19 20 | X | − | X | × | 3 10000 | − | 501373 2 | × | 3 10000 |
| = | 19 20 | X | − | X | × | 3 10000 | − | 1504119 20000 |
| = | 9497 10000 | X | − | 1504119 20000 |
9497 10000 | X | − | 1504119 20000 | = | 501373 2 |
9497 10000 | X | = | 501373 2 | + | 1504119 20000 |