670619 10000 | + | 9979 10000 | + | 1 10 | x | + | x | = | 0 |
| Left side of the equation = | 340299 5000 | + | 11 10 | x |
340299 5000 | + | 11 10 | x | = | 0 |
11 10 | x | = | 0 | − | 340299 5000 |
11 10 | x | = | - | 340299 5000 |
| x | = | - | 340299 5000 | ÷ | 11 10 |
| = | - | 340299 5000 | × | 10 11 |
| = | - | 340299 500 | × | 1 11 |
| x | = | - | 340299 5500 |
| x | = | - 61.872545 |