| 500 | + | 10 | x | = | ( | 500 | + | 10 | x | ) | ÷ | 15 2 |
| Right side of the equation = | 500 | × | 2 15 | + | 10 | x | × | 2 15 |
| = | 200 3 | + | 4 3 | x |
| 500 | + | 10 | x | = | 200 3 | + | 4 3 | x |
| 10 | x | − | 4 3 | x | = | 200 3 | − | 500 |
26 3 | x | = | 200 3 | − | 500 |
26 3 | x | = | - | 1300 3 |
| x | = | - | 1300 3 | ÷ | 26 3 |
| = | - | 1300 3 | × | 3 26 |
| = | - | 50 | × | 1 |
| x | = | - | 50 |