699 1000 | + | x | = | 2 | ( | 459 1000 | + | x | ) |
| Right side of the equation = | 2 | × | 459 1000 | + | 2 | x |
| = | 459 500 | + | 2 | x |
699 1000 | + | x | = | 459 500 | + | 2 | x |
| x | − | 2 | x | = | 459 500 | − | 699 1000 |
| - | x | = | 459 500 | − | 699 1000 |
| - | x | = | 459 500 | − | 699 1000 |
| - | x | = | 219 1000 |
| - | 219 1000 | = | x |
| x | = | - | 219 1000 |