| 8 | x | + | 18 | − | 5 | x | + | 25 | = | 9 100 | + | 3 50 | x |
| Left side of the equation = | 3 | x | + | 43 |
| 3 | x | + | 43 | = | 9 100 | + | 3 50 | x |
| 3 | x | − | 3 50 | x | = | 9 100 | − | 43 |
147 50 | x | = | 9 100 | − | 43 |
147 50 | x | = | - | 4291 100 |
| x | = | - | 4291 100 | ÷ | 147 50 |
| = | - | 4291 100 | × | 50 147 |
| = | - | 613 2 | × | 1 21 |
| x | = | - | 613 42 |
| x | = | - 14.595238 |