17 20 | X | × | 40 | + | 3 20 | X | × | 15 | = | 15235 | × | 53 100 |
| Left side of the equation = | 34 | X | + | 9 4 | X |
| = | 145 4 | X |
145 4 | X | = | 15235 | × | 53 100 |
| Right side of the equation = | 161491 20 |
145 4 | X | = | 161491 20 |
| X | = | 161491 20 | ÷ | 145 4 |
| = | 161491 20 | × | 4 145 |
| = | 161491 5 | × | 1 145 |
| X | = | 161491 725 |
| X | = | 222.746207 |