73 1000 | + | 21 200 | x | + | 29 500 | ( | 1 2 | − | x | ) | = | 1 |
| Left side of the equation = | 73 1000 | + | 21 200 | x | + | 29 500 | × | 1 2 | − | 29 500 | x |
| = | 73 1000 | + | 21 200 | x | + | 29 1000 | − | 29 500 | x |
| = | 51 500 | + | 47 1000 | x |
51 500 | + | 47 1000 | x | = | 1 |
47 1000 | x | = | 1 | − | 51 500 |
47 1000 | x | = | 449 500 |
| x | = | 449 500 | ÷ | 47 1000 |
| = | 449 500 | × | 1000 47 |
| = | 449 | × | 2 47 |
| x | = | 898 47 |
| x | = | 19.106383 |