| X | ÷ | 10 | ÷ | 2 | × | X | ÷ | 10 | ÷ | 2 | × | ( | X | + | 56 | ) | = | 13088619 10000000 |
| Left side of the equation = | X | × | 1 400 | X | ( | X | + | 56 | ) |
| X | × | 1 400 | X | ( | X | + | 56 | ) | = | 13088619 10000000 |
| Left side of the equation = | X | × | 1 400 | X | X | + | X | × | 1 400 | X | × | 56 |
| = | X | × | 1 400 | X | X | + | X | × | 7 50 | X |
| X | × | 1 400 | X | X | + | X | × | 7 50 | X | = | 13088619 10000000 |