| 1400 | + | 27 | x | ÷ | 2000 | + | x | = | 91 10 |
| Left side of the equation = | 1400 | + | 27 2000 | x | + | x |
| = | 1400 | + | 2027 2000 | x |
| 1400 | + | 2027 2000 | x | = | 91 10 |
2027 2000 | x | = | 91 10 | − | 1400 |
2027 2000 | x | = | - | 13909 10 |
| x | = | - | 13909 10 | ÷ | 2027 2000 |
| = | - | 13909 10 | × | 2000 2027 |
| = | - | 13909 | × | 200 2027 |
| x | = | - | 2781800 2027 |
| x | = | - 1372.372965 |