| x | = | ( | x | + | 15 | ) | ÷ | 55 | × | 50 |
| Right side of the equation = | ( | x | + | 15 | ) | × | 10 11 |
| x | = | ( | x | + | 15 | ) | × | 10 11 |
| Right side of the equation = | x | × | 10 11 | + | 15 | × | 10 11 |
| = | x | × | 10 11 | + | 150 11 |
| x | = | 10 11 | x | + | 150 11 |
| x | − | 10 11 | x | = | 150 11 |
1 11 | x | = | 150 11 |
| x | = | 150 11 | ÷ | 1 11 |
| = | 150 11 | × | 11 |
| = | 150 | × | 1 |
| x | = | 150 |