| ( | 73 | ( | 1 | + | 20 100 | ) | ) | + | ( | 8 100 | x | ) | = | x |
| Left side of the equation = | 73 | ( | 1 | + | 20 100 | ) | + | ( | 8 100 | x | ) |
| = | 73 | × | 1 | + | 73 | × | 20 100 | + | ( | 8 100 | x | ) |
| = | 73 | + | 73 5 | + | ( | 8 100 | x | ) |
| = | 438 5 | + | ( | 8 100 | x | ) |
| = | 438 5 | + | 8 100 | x |
438 5 | + | 8 100 | x | = | x |
8 100 | x | − | x | = | - | 438 5 |
| - | 23 25 | x | = | - | 438 5 |
438 5 | = | 23 25 | x |
23 25 | x | = | 438 5 |
| x | = | 438 5 | ÷ | 23 25 |
| = | 438 5 | × | 25 23 |
| = | 438 | × | 5 23 |
| x | = | 2190 23 |
| x | = | 95.217391 |