| ( | 13800 | × | 2 | − | 131429 100 | − | 8500 | − | 1000 | − | 6000 | − | 200 | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | ) | x | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | + | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 | ) | = | 8577 5 |
| Left side of the equation = | 13800 | × | 2 | x | − | 131429 100 | x | − | 8500 | x | − | 1000 | x | − | 6000 | x | − | 200 |
| = | 27600 | x | − | 131429 100 | x | − | 8500 | x | − | 1000 | x | − | 6000 | x | − | 200 | x |
| = | 1058571 100 | x | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | x | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | + | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 | ) |
| = | 1058571 100 | x | − | 8500 | ( | 10 100 | + | 20 100 | ) | x | − | 1000 | ( | 10 100 | + | 20 100 | ) | x | − | 6000 | ( | 10 100 | + | 20 100 | ) | x | − | 200 |
| = | 1058571 100 | x | − | 8500 | × | 10 100 | x | − | 8500 | × | 20 100 | x | − | 1000 | ( | 10 100 | + | 20 100 | ) | x | − | 6000 |
| = | 1058571 100 | x | − | 850 | x | − | 1700 | x | − | 1000 | ( | 10 100 | + | 20 100 | ) | x | − | 6000 | ( | 10 100 | + | 20 100 | ) | x |
| = | 803571 100 | x | − | 1000 | ( | 10 100 | + | 20 100 | ) | x | − | 6000 | ( | 10 100 | + | 20 100 | ) | x | − | 200 | ( | 10 100 | + | 20 100 | ) | x | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | + | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 | ) |
| = | 803571 100 | x | − | 1000 | × | 10 100 | x | − | 1000 | × | 20 100 | x | − | 6000 | ( | 10 100 | + | 20 100 | ) | x | − | 200 |
| = | 803571 100 | x | − | 100 | x | − | 200 | x | − | 6000 | ( | 10 100 | + | 20 100 | ) | x | − | 200 | ( | 10 100 | + | 20 100 | ) | x |
| = | 773571 100 | x | − | 6000 | ( | 10 100 | + | 20 100 | ) | x | − | 200 | ( | 10 100 | + | 20 100 | ) | x | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | + | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 | ) |
| = | 773571 100 | x | − | 6000 | × | 10 100 | x | − | 6000 | × | 20 100 | x | − | 200 | ( | 10 100 | + | 20 100 | ) | x | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | + | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 | ) |
| = | 773571 100 | x | − | 600 | x | − | 1200 | x | − | 200 | ( | 10 100 | + | 20 100 | ) | x | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | + | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 | ) |
| = | 593571 100 | x | − | 200 | ( | 10 100 | + | 20 100 | ) | x | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | + | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 | ) |
| = | 593571 100 | x | − | 200 | × | 10 100 | x | − | 200 | × | 20 100 | x | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | + | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 | ) |
| = | 593571 100 | x | − | 20 | x | − | 40 | x | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | + | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 | ) |
| = | 587571 100 | x | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | + | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 | ) |
| = | 587571 100 | x | − | 8500 | − | 1000 | − | 6000 | − | 200 | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 |
| = | 587571 100 | x | − | 15700 | − | ( | 8500 | + | 1000 | + | 6000 | + | 200 | ) | ( | 10 100 | + | 20 100 | ) | × | 7 10 |
| = | 587571 100 | x | − | 15700 | − | 8500 | ( | 10 100 | + | 20 100 | ) | × | 7 10 | − | 1000 | ( | 10 100 | + | 20 100 | ) | × | 7 10 | − | 6000 | ( | 10 100 | + | 20 100 | ) | × | 7 10 |
| = | 587571 100 | x | − | 15700 | − | 5950 | ( | 10 100 | + | 20 100 | ) | − | 700 | ( | 10 100 | + | 20 100 | ) | − | 4200 | ( | 10 100 | + | 20 100 | ) | − | 140 | ( | 10 100 | + | 20 100 | ) |
| = | 587571 100 | x | − | 15700 | − | 5950 | × | 10 100 | − | 5950 | × | 20 100 | − | 700 | ( | 10 100 | + | 20 100 | ) | − | 4200 | ( | 10 100 | + | 20 100 | ) | − | 140 |
| = | 587571 100 | x | − | 15700 | − | 595 | − | 1190 | − | 700 | ( | 10 100 | + | 20 100 | ) | − | 4200 | ( | 10 100 | + | 20 100 | ) | − | 140 | ( | 10 100 | + | 20 100 | ) |
| = | 587571 100 | x | − | 17485 | − | 700 | ( | 10 100 | + | 20 100 | ) | − | 4200 | ( | 10 100 | + | 20 100 | ) | − | 140 | ( | 10 100 | + | 20 100 | ) |
| = | 587571 100 | x | − | 17485 | − | 700 | × | 10 100 | − | 700 | × | 20 100 | − | 4200 | ( | 10 100 | + | 20 100 | ) | − | 140 | ( | 10 100 | + | 20 100 | ) |
| = | 587571 100 | x | − | 17485 | − | 70 | − | 140 | − | 4200 | ( | 10 100 | + | 20 100 | ) | − | 140 | ( | 10 100 | + | 20 100 | ) |