| ( | 1000 | + | x | ) | ÷ | ( | 1000 | ÷ | 223 100 | + | x | ) | = | 8 5 |
| Multiply both sides of the equation by: | ( | 1000 | ÷ | 223 100 | + | x | ) |
| ( | 1000 | + | x | ) | = | 8 5 | ( | 1000 | ÷ | 223 100 | + | x | ) |
| 1000 | + | x | = | 8 5 | ( | 1000 | ÷ | 223 100 | + | x | ) |
| 1000 | + | x | = | 8 5 | × | 1000 | ÷ | 223 100 | + | 8 5 | x |
| 1000 | + | x | = | 160000 223 | + | 8 5 | x |
| x | − | 8 5 | x | = | 160000 223 | − | 1000 |
| - | 3 5 | x | = | 160000 223 | − | 1000 |
| - | 3 5 | x | = | - | 63000 223 |
63000 223 | = | 3 5 | x |
3 5 | x | = | 63000 223 |
| x | = | 63000 223 | ÷ | 3 5 |
| = | 63000 223 | × | 5 3 |
| = | 21000 223 | × | 5 |
| x | = | 105000 223 |
| x | = | 470.852018 |