| ( | 1 | + | 73 50 | x | ) | ( | 3631 1000 | x | − | 579 500 | ) | = | 123 50 | x |
| Left side of the equation = | 1 | ( | 3631 1000 | x | − | 579 500 | ) | + | 73 50 | x | ( | 3631 1000 | x | − | 579 500 | ) |
| = | 1 | × | 3631 1000 | x | − | 1 | × | 579 500 | + | 73 50 | x | ( | 3631 1000 | x | − | 579 500 | ) |
| = | 3631 1000 | x | − | 579 500 | + | 73 50 | x | ( | 3631 1000 | x | − | 579 500 | ) |
| = | 3631 1000 | x | − | 579 500 | + | 73 50 | x | × | 3631 1000 | x | − | 73 50 | x | × | 579 500 |
| = | 3631 1000 | x | − | 579 500 | + | 265063 50000 | x | x | − | 42267 25000 | x |
| = | 12127 6250 | x | − | 579 500 | + | 265063 50000 | x | x |
12127 6250 | x | − | 579 500 | + | 265063 50000 | x | x | = | 123 50 | x |