6293 100 | x | + | 6493 100 | ( | 1 | − | x | ) | = | 1271 20 |
| Left side of the equation = | 6293 100 | x | + | 6493 100 | × | 1 | − | 6493 100 | x |
| = | 6293 100 | x | + | 6493 100 | − | 6493 100 | x |
| = | - | 2 | x | + | 6493 100 |
| - | 2 | x | + | 6493 100 | = | 1271 20 |
| - | 2 | x | = | 1271 20 | − | 6493 100 |
| - | 2 | x | = | - | 69 50 |
69 50 | = | 2 | x |
| 2 | x | = | 69 50 |
| x | = | 69 50 | ÷ | 2 |
| = | 69 50 | × | 1 2 |
| x | = | 69 100 |
| x | = | 0.69 |