| - | ( | 6850 | ÷ | T | ) | + | 281 25 | = | - | ( | 6620 | ÷ | T | ) | + | 617 50 |
| - | 6850 | ÷ | T | + | 281 25 | = | - | ( | 6620 | ÷ | T | ) | + | 617 50 |
| - | 6850 | ÷ | T | + | 281 25 | = | - | 6620 | ÷ | T | + | 617 50 |
| Multiply both sides of the equation by: | T |
| - | 6850 | + | 281 25 | T | = | - | 6620 | ÷ | 1 | × | 1 | + | 617 50 | T |
281 25 | T | − | 617 50 | T | = | - | 6620 | ÷ | 1 | × | 1 | + | 6850 |
281 25 | T | − | 617 50 | T | = | - | 6620 | + | 6850 |
| - | 11 10 | T | = | - | 6620 | + | 6850 |
| - | 11 10 | T | = | 230 |
| - | 230 | = | 11 10 | T |
11 10 | T | = | - | 230 |
| T | = | - | 230 | ÷ | 11 10 |
| = | - | 230 | × | 10 11 |
| T | = | - | 2300 11 |
| T | = | - 209.090909 |