| ( | 7406 | + | x | ) | ÷ | x | × | 100 100 | = | 27 1000 |
| 方程两边同时乘以: | x |
| ( | 7406 | + | x | ) | × | 100 100 | = | 27 1000 | x |
| 7406 | × | 100 100 | + | x | × | 100 100 | = | 27 1000 | x |
| 7406 | + | x | × | 100 100 | = | 27 1000 | x |
100 100 | x | − | 27 1000 | x | = | - | 7406 |
973 1000 | x | = | - | 7406 |
| x | = | - | 7406 | ÷ | 973 1000 |
| = | - | 7406 | × | 1000 973 |
| = | - | 1058 | × | 1000 139 |
| x | = | - | 1058000 139 |
| x | = | - 7611.510791 |