| ( | 2 | + | 58 25 | ) | ÷ | 2 | × | 2 5 | X | = | 18 |
| Left side of the equation = | ( | 2 | + | 58 25 | ) | × | 1 5 | X |
| ( | 2 | + | 58 25 | ) | × | 1 5 | X | = | 18 |
| Left side of the equation = | 2 | × | 1 5 | X | + | 58 25 | × | 1 5 | X |
| = | 2 5 | X | + | 58 125 | X |
| = | 108 125 | X |
108 125 | X | = | 18 |
| X | = | 18 | ÷ | 108 125 |
| = | 18 | × | 125 108 |
| = | 1 | × | 125 6 |
| X | = | 125 6 |
| X | = | 20.833333 |