| 1 | ÷ | ( | 17 20 | − | 3 400 | x | ) | − | 13 10 | + | 3 200 | x | = | 0 |
| Multiply both sides of the equation by: | ( | 17 20 | − | 3 400 | x | ) |
| 1 | − | 13 10 | ( | 17 20 | − | 3 400 | x | ) | + | 3 200 | x | ( | 17 20 | − | 3 400 | x | ) | = | 0 |
| 1 | − | 13 10 | × | 17 20 | + | 13 10 | × | 3 400 | x | + | 3 200 | x | ( | 17 20 | − | 3 400 | x | ) | = | 0 |
| 1 | − | 221 200 | + | 39 4000 | x | + | 3 200 | x | ( | 17 20 | − | 3 400 | x | ) | = | 0 |
| - | 21 200 | + | 39 4000 | x | + | 3 200 | x | ( | 17 20 | − | 3 400 | x | ) | = | 0 |
| - | 21 200 | + | 39 4000 | x | + | 3 200 | x | × | 17 20 | − | 3 200 | x | × | 3 400 | x | = | 0 |
| - | 21 200 | + | 39 4000 | x | + | 51 4000 | x | − | 9 80000 | x | x | = | 0 |
| - | 21 200 | + | 9 400 | x | − | 9 80000 | x | x | = | 0 |