| x | ÷ | ( | 13 | ÷ | 100 | ) | = | 30885 4 | − | x |
| Multiply both sides of the equation by: | ( | 13 | ÷ | 100 | ) |
| x | = | 30885 4 | ( | 13 | ÷ | 100 | ) | − | x | ( | 13 | ÷ | 100 | ) |
| x | = | 30885 4 | × | 13 | ÷ | 100 | − | x | ( | 13 | ÷ | 100 | ) |
| x | = | 80301 80 | − | x | ( | 13 | ÷ | 100 | ) |
| x | = | 80301 80 | − | x | × | 13 | ÷ | 100 |
| x | = | 80301 80 | − | x | × | 13 100 |
| x | + | 13 100 | x | = | 80301 80 |
113 100 | x | = | 80301 80 |
| x | = | 80301 80 | ÷ | 113 100 |
| = | 80301 80 | × | 100 113 |
| = | 80301 4 | × | 5 113 |
| x | = | 401505 452 |
| x | = | 888.285398 |