| ( | 167 50 | + | 413 100 | ) | ÷ | 2 | × | 1 | X | = | 225 2 |
| Left side of the equation = | ( | 167 50 | + | 413 100 | ) | × | 1 2 | X |
| ( | 167 50 | + | 413 100 | ) | × | 1 2 | X | = | 225 2 |
| Left side of the equation = | 167 50 | × | 1 2 | X | + | 413 100 | × | 1 2 | X |
| = | 167 100 | X | + | 413 200 | X |
| = | 747 200 | X |
747 200 | X | = | 225 2 |
| X | = | 225 2 | ÷ | 747 200 |
| = | 225 2 | × | 200 747 |
| = | 25 | × | 100 83 |
| X | = | 2500 83 |
| X | = | 30.120482 |