| ( | 2 | + | 5 | ) | ÷ | 2 | × | 19 5 | X | = | 500 |
| Left side of the equation = | ( | 2 | + | 5 | ) | × | 19 10 | X |
| ( | 2 | + | 5 | ) | × | 19 10 | X | = | 500 |
| Left side of the equation = | 2 | × | 19 10 | X | + | 5 | × | 19 10 | X |
| = | 19 5 | X | + | 19 2 | X |
| = | 133 10 | X |
133 10 | X | = | 500 |
| X | = | 500 | ÷ | 133 10 |
| = | 500 | × | 10 133 |
| X | = | 5000 133 |
| X | = | 37.593985 |