| 1 | ÷ | 9 | × | ( | 1 | ÷ | 7 | × | ( | 1 | ÷ | 5 | × | ( | ( | x | + | 2 | ) | ÷ | 3 | + | 4 | ) | + | 6 | ) | + | 8 | ) | = | 1 |
| Left side of the equation = | 1 9 | ( | 1 | ÷ | 7 | × | ( | 1 | ÷ | 5 | × | ( | ( | x | + | 2 | ) | ÷ | 3 | + | 4 | ) | + | 6 | ) | + | 8 | ) |
1 9 | ( | 1 | ÷ | 7 | × | ( | 1 | ÷ | 5 | × | ( | ( | x | + | 2 | ) | ÷ | 3 | + | 4 | ) | + | 6 | ) | + | 8 | ) | = | 1 |
| Left side of the equation = | 1 9 | × | 1 | ÷ | 7 | × | ( | 1 | ÷ | 5 | × | ( | ( | x | + | 2 | ) | ÷ | 3 | + | 4 | ) | + | 6 | ) | + | 1 9 | × | 8 |
| = | 1 63 | ( | 1 | ÷ | 5 | × | ( | ( | x | + | 2 | ) | ÷ | 3 | + | 4 | ) | + | 6 | ) | + | 8 9 |
| = | 1 63 | × | 1 | ÷ | 5 | × | ( | ( | x | + | 2 | ) | ÷ | 3 | + | 4 | ) | + | 1 63 | × | 6 | + | 8 9 |
| = | 1 315 | ( | ( | x | + | 2 | ) | ÷ | 3 | + | 4 | ) | + | 2 21 | + | 8 9 |
| = | 1 315 | ( | ( | x | + | 2 | ) | ÷ | 3 | + | 4 | ) | + | 62 63 |
| = | 1 315 | ( | x | + | 2 | ) | ÷ | 3 | + | 1 315 | × | 4 | + | 62 63 |
| = | 1 945 | ( | x | + | 2 | ) | + | 4 315 | + | 62 63 |
| = | 1 945 | ( | x | + | 2 | ) | + | 314 315 |
| = | 1 945 | x | + | 1 945 | × | 2 | + | 314 315 |
| = | 1 945 | x | + | 2 945 | + | 314 315 |
| = | 1 945 | x | + | 944 945 |
1 945 | x | + | 944 945 | = | 1 |
1 945 | x | = | 1 | − | 944 945 |
1 945 | x | = | 1 945 |
| x | = | 1 945 | ÷ | 1 945 |
| = | 1 945 | × | 945 |
| = | 1 | × | 1 |
| x | = | 1 |