| ( | 59 20 | + | 81 20 | ) | ÷ | 2 | × | 7 5 | X | = | 175 |
| Left side of the equation = | ( | 59 20 | + | 81 20 | ) | × | 7 10 | X |
| ( | 59 20 | + | 81 20 | ) | × | 7 10 | X | = | 175 |
| Left side of the equation = | 59 20 | × | 7 10 | X | + | 81 20 | × | 7 10 | X |
| = | 413 200 | X | + | 567 200 | X |
| = | 49 10 | X |
49 10 | X | = | 175 |
| X | = | 175 | ÷ | 49 10 |
| = | 175 | × | 10 49 |
| = | 25 | × | 10 7 |
| X | = | 250 7 |
| X | = | 35.714286 |