| ( | ( | x | − | 80 | ) | × | 10 | − | 96 | ) | ( | 1 | − | 25 100 | ) | = | 81 500 |
| Left side of the equation = | ( | x | − | 80 | ) | × | 10 | ( | 1 | − | 25 100 | ) | − | 96 | ( | 1 | − | 25 100 | ) |
| = | x | × | 10 | ( | 1 | − | 25 100 | ) | − | 80 | × | 10 | ( | 1 | − | 25 100 | ) | − | 96 | ( | 1 | − | 25 100 | ) |
| = | x | × | 10 | ( | 1 | − | 25 100 | ) | − | 800 | ( | 1 | − | 25 100 | ) | − | 96 | ( | 1 | − | 25 100 | ) |
| = | x | × | 10 | × | 1 | − | x | × | 10 | × | 25 100 | − | 800 | ( | 1 | − | 25 100 | ) | − | 96 | ( | 1 | − | 25 100 | ) |
| = | x | × | 10 | − | x | × | 5 2 | − | 800 | ( | 1 | − | 25 100 | ) | − | 96 | ( | 1 | − | 25 100 | ) |
| = | 15 2 | x | − | 800 | ( | 1 | − | 25 100 | ) | − | 96 | ( | 1 | − | 25 100 | ) |
| = | 15 2 | x | − | 800 | × | 1 | + | 800 | × | 25 100 | − | 96 | ( | 1 | − | 25 100 | ) |
| = | 15 2 | x | − | 800 | + | 200 | − | 96 | ( | 1 | − | 25 100 | ) |
| = | 15 2 | x | − | 600 | − | 96 | ( | 1 | − | 25 100 | ) |
| = | 15 2 | x | − | 600 | − | 96 | × | 1 | + | 96 | × | 25 100 |
| = | 15 2 | x | − | 600 | − | 96 | + | 24 |
| = | 15 2 | x | − | 672 |
15 2 | x | − | 672 | = | 81 500 |
15 2 | x | = | 81 500 | + | 672 |
15 2 | x | = | 336081 500 |
| x | = | 336081 500 | ÷ | 15 2 |
| = | 336081 500 | × | 2 15 |
| = | 112027 250 | × | 1 5 |
| x | = | 112027 1250 |
| x | = | 89.6216 |