| ( | 8200 | + | 95 | + | X | ) | × | 7 200 | = | 4 | X |
| Left side of the equation = | 8200 | × | 7 200 | + | 95 | × | 7 200 | + | X | × | 7 200 |
| = | 287 | + | 133 40 | + | X | × | 7 200 |
| = | 11613 40 | + | 7 200 | X |
11613 40 | + | 7 200 | X | = | 4 | X |
7 200 | X | − | 4 | X | = | - | 11613 40 |
| - | 793 200 | X | = | - | 11613 40 |
11613 40 | = | 793 200 | X |
793 200 | X | = | 11613 40 |
| X | = | 11613 40 | ÷ | 793 200 |
| = | 11613 40 | × | 200 793 |
| = | 11613 | × | 5 793 |
| X | = | 58065 793 |
| X | = | 73.221942 |