| ( | 29 10 | − | x | ) | ÷ | x | = | 33 1000 |
| 方程两边同时乘以: | x |
| ( | 29 10 | − | x | ) | = | 33 1000 | x |
29 10 | − | x | = | 33 1000 | x |
| - | x | − | 33 1000 | x | = | - | 29 10 |
| - | 1033 1000 | x | = | - | 29 10 |
29 10 | = | 1033 1000 | x |
1033 1000 | x | = | 29 10 |
| x | = | 29 10 | ÷ | 1033 1000 |
| = | 29 10 | × | 1000 1033 |
| = | 29 | × | 100 1033 |
| x | = | 2900 1033 |
| x | = | 2.807357 |