| ( | 30 | − | 22 | ) | ÷ | ( | 22 | − | 24 | ) | = | ( | 55 | − | t | ) | ÷ | ( | t | − | 41 | ) |
| 方程两边同时乘以: | ( | 22 | − | 24 | ) | , | ( | t | − | 41 | ) |
| ( | 30 | − | 22 | ) | ( | t | − | 41 | ) | = | ( | 55 | − | t | ) | ( | 22 | − | 24 | ) |
| 30 | ( | t | − | 41 | ) | − | 22 | ( | t | − | 41 | ) | = | ( | 55 | − | t | ) | ( | 22 | − | 24 | ) |
| 30 | ( | t | − | 41 | ) | − | 22 | ( | t | − | 41 | ) | = | 55 | ( | 22 | − | 24 | ) | − | t | ( | 22 | − | 24 | ) |
| 30 | t | − | 30 | × | 41 | − | 22 | ( | t | − | 41 | ) | = | 55 | ( | 22 | − | 24 | ) | − | t | ( | 22 | − | 24 | ) |
| 30 | t | − | 30 | × | 41 | − | 22 | ( | t | − | 41 | ) | = | 55 | × | 22 | − | 55 | × | 24 | − | t | ( | 22 | − | 24 | ) |
| 30 | t | − | 1230 | − | 22 | ( | t | − | 41 | ) | = | 1210 | − | 1320 | − | t | ( | 22 | − | 24 | ) |
| 30 | t | − | 1230 | − | 22 | ( | t | − | 41 | ) | = | - | 110 | − | t | ( | 22 | − | 24 | ) |
| 30 | t | − | 1230 | − | 22 | t | + | 22 | × | 41 | = | - | 110 | − | t | ( | 22 | − | 24 | ) |
| 30 | t | − | 1230 | − | 22 | t | + | 22 | × | 41 | = | - | 110 | − | t | × | 22 | + | t | × | 24 |
| 30 | t | − | 1230 | − | 22 | t | + | 902 | = | - | 110 | − | t | × | 22 | + | t | × | 24 |
| 8 | t | − | 328 | = | - | 110 | + | 2 | t |
| 8 | t | − | 2 | t | = | - | 110 | + | 328 |
| 6 | t | = | - | 110 | + | 328 |
| 6 | t | = | 218 |
| t | = | 218 | ÷ | 6 |
| = | 218 | × | 1 6 |
| = | 109 | × | 1 3 |
| t | = | 109 3 |
| t | = | 36.333333 |