| ( | 2 | + | 5 | ) | ÷ | 2 | × | X | × | 11 | = | 2903 20 |
| Left side of the equation = | ( | 2 | + | 5 | ) | × | 11 2 | X |
| ( | 2 | + | 5 | ) | × | 11 2 | X | = | 2903 20 |
| Left side of the equation = | 2 | × | 11 2 | X | + | 5 | × | 11 2 | X |
| = | 11 | X | + | 55 2 | X |
| = | 77 2 | X |
77 2 | X | = | 2903 20 |
| X | = | 2903 20 | ÷ | 77 2 |
| = | 2903 20 | × | 2 77 |
| = | 2903 10 | × | 1 77 |
| X | = | 2903 770 |
| X | = | 3.77013 |