47 50 | ( | 9 20 | x | + | 500 | ) | = | x |
| Left side of the equation = | 47 50 | × | 9 20 | x | + | 47 50 | × | 500 |
| = | 423 1000 | x | + | 470 |
423 1000 | x | + | 470 | = | x |
423 1000 | x | − | x | = | - | 470 |
| - | 577 1000 | x | = | - | 470 |
| 470 | = | 577 1000 | x |
577 1000 | x | = | 470 |
| x | = | 470 | ÷ | 577 1000 |
| = | 470 | × | 1000 577 |
| x | = | 470000 577 |
| x | = | 814.558059 |