| - | 57 200 | × | 1 4 | = | 33 100 | ( | x | + | 19 20 | ) |
| Left side of the equation = | - | 57 800 |
| - | 57 800 | = | 33 100 | ( | x | + | 19 20 | ) |
| Right side of the equation = | 33 100 | x | + | 33 100 | × | 19 20 |
| = | 33 100 | x | + | 627 2000 |
| - | 57 800 | = | 33 100 | x | + | 627 2000 |
| - | 33 100 | x | = | 627 2000 | + | 57 800 |
| - | 33 100 | x | = | 1539 4000 |
| - | 1539 4000 | = | 33 100 | x |
33 100 | x | = | - | 1539 4000 |
| x | = | - | 1539 4000 | ÷ | 33 100 |
| = | - | 1539 4000 | × | 100 33 |
| = | - | 513 40 | × | 1 11 |
| x | = | - | 513 440 |
| x | = | - 1.165909 |