| ( | 269 50000 | − | x | ) | ( | 269 5000 | − | x | ) | = | 1 | ÷ | 710 |
| Left side of the equation = | 269 50000 | ( | 269 5000 | − | x | ) | − | x | ( | 269 5000 | − | x | ) |
| = | 269 50000 | × | 269 5000 | − | 269 50000 | x | − | x | ( | 269 5000 | − | x | ) |
| = | 72361 250000000 | − | 269 50000 | x | − | x | ( | 269 5000 | − | x | ) |
| = | 72361 250000000 | − | 269 50000 | x | − | x | × | 269 5000 | + | x | x |
| = | 72361 250000000 | − | 2959 50000 | x | + | x | x |
72361 250000000 | − | 2959 50000 | x | + | x | x | = | 1 | ÷ | 710 |
| Right side of the equation = | 1 710 |
72361 250000000 | − | 2959 50000 | x | + | x | x | = | 1 710 |