98 5 | ÷ | ( | 150 | + | x | ) | = | 13 200 |
| 方程两边同时乘以: | ( | 150 | + | x | ) |
98 5 | = | 13 200 | ( | 150 | + | x | ) |
98 5 | = | 13 200 | × | 150 | + | 13 200 | x |
98 5 | = | 39 4 | + | 13 200 | x |
| - | 13 200 | x | = | 39 4 | − | 98 5 |
| - | 13 200 | x | = | - | 197 20 |
197 20 | = | 13 200 | x |
13 200 | x | = | 197 20 |
| x | = | 197 20 | ÷ | 13 200 |
| = | 197 20 | × | 200 13 |
| = | 197 | × | 10 13 |
| x | = | 1970 13 |
| x | = | 151.538462 |