| ( | 821 100 | x | − | 3 5 | x | ) | + | ( | 821 100 | x | − | 3 5 | x | ) | = | 500 |
| Left side of the equation = | 821 100 | x | − | 3 5 | x | + | ( | 821 100 | x | − | 3 5 | x | ) |
| = | 761 100 | x | + | ( | 821 100 | x | − | 3 5 | x | ) |
| = | 761 100 | x | + | 821 100 | x | − | 3 5 | x |
| = | 761 50 | x |
761 50 | x | = | 500 |
| x | = | 500 | ÷ | 761 50 |
| = | 500 | × | 50 761 |
| x | = | 25000 761 |
| x | = | 32.851511 |