69 5 | × | 300 | x | ( | 822 | − | 360 | + | 1 2 | x | ) | = | 330 | × | 982 | × | 822 | − | 330 | × | 628 | × | 504 |
| Left side of the equation = | 4140 | x | ( | 822 | − | 360 | + | 1 2 | x | ) |
| 4140 | x | ( | 822 | − | 360 | + | 1 2 | x | ) | = | 330 | × | 982 | × | 822 | − | 330 | × | 628 | × | 504 |
| Left side of the equation = | 4140 | x | × | 822 | − | 4140 | x | × | 360 | + | 4140 | x | × | 1 2 | x |
| = | 3403080 | x | − | 1490400 | x | + | 2070 | x | x |
| = | 1912680 | x | + | 2070 | x | x |
| 1912680 | x | + | 2070 | x | x | = | 330 | × | 982 | × | 822 | − | 330 | × | 628 | × | 504 |
| Right side of the equation = | 266377320 | − | 104448960 |
| = | 161928360 |
| 1912680 | x | + | 2070 | x | x | = | 161928360 |