71 100 | x | + | 1 | − | x | = | 997 1000 |
| Left side of the equation = | - | 29 100 | x | + | 1 |
| - | 29 100 | x | + | 1 | = | 997 1000 |
| - | 29 100 | x | = | 997 1000 | − | 1 |
| - | 29 100 | x | = | - | 3 1000 |
3 1000 | = | 29 100 | x |
29 100 | x | = | 3 1000 |
| x | = | 3 1000 | ÷ | 29 100 |
| = | 3 1000 | × | 100 29 |
| = | 3 10 | × | 1 29 |
| x | = | 3 290 |
| x | = | 0.010345 |