| ( | 6 | × | 5000 | + | x | ) | ÷ | 7 | + | 6000 | = | x |
| Left side of the equation = | 6 | × | 5000 | × | 1 7 | + | x | × | 1 7 | + | 6000 |
| = | 30000 7 | + | x | × | 1 7 | + | 6000 |
| = | 72000 7 | + | 1 7 | x |
72000 7 | + | 1 7 | x | = | x |
1 7 | x | − | x | = | - | 72000 7 |
| - | 6 7 | x | = | - | 72000 7 |
72000 7 | = | 6 7 | x |
6 7 | x | = | 72000 7 |
| x | = | 72000 7 | ÷ | 6 7 |
| = | 72000 7 | × | 7 6 |
| = | 12000 | × | 1 |
| x | = | 12000 |