| ( | 175 | ( | 1 | + | 20 100 | ) | ) | + | ( | 5 100 | x | ) | = | x |
| Left side of the equation = | 175 | ( | 1 | + | 20 100 | ) | + | ( | 5 100 | x | ) |
| = | 175 | × | 1 | + | 175 | × | 20 100 | + | ( | 5 100 | x | ) |
| = | 175 | + | 35 | + | ( | 5 100 | x | ) |
| = | 210 | + | ( | 5 100 | x | ) |
| = | 210 | + | 5 100 | x |
| 210 | + | 5 100 | x | = | x |
5 100 | x | − | x | = | - | 210 |
| - | 19 20 | x | = | - | 210 |
| 210 | = | 19 20 | x |
19 20 | x | = | 210 |
| x | = | 210 | ÷ | 19 20 |
| = | 210 | × | 20 19 |
| x | = | 4200 19 |
| x | = | 221.052632 |