| x | ÷ | 2000 | = | x | + | 15 | ÷ | 3200 |
| Right side of the equation = | x | + | 3 640 |
1 2000 | x | = | x | + | 3 640 |
1 2000 | x | − | x | = | 3 640 |
| - | 1999 2000 | x | = | 3 640 |
| - | 3 640 | = | 1999 2000 | x |
1999 2000 | x | = | - | 3 640 |
| x | = | - | 3 640 | ÷ | 1999 2000 |
| = | - | 3 640 | × | 2000 1999 |
| = | - | 3 8 | × | 25 1999 |
| x | = | - | 75 15992 |
| x | = | - 0.00469 |