| ( | X | − | 13 100 | ) | ÷ | ( | 14 100 | − | 13 100 | ) | = | 711123 1000000 |
| Multiply both sides of the equation by: | ( | 14 100 | − | 13 100 | ) |
| ( | X | − | 13 100 | ) | = | 711123 1000000 | ( | 14 100 | − | 13 100 | ) |
| X | − | 13 100 | = | 711123 1000000 | ( | 14 100 | − | 13 100 | ) |
| X | − | 13 100 | = | 711123 1000000 | × | 14 100 | − | 711123 1000000 | × | 13 100 |
| X | − | 13 100 | = | 4977861 50000000 | − | 9244599 100000000 |