| ( | 124 | + | 315 | ) | ÷ | 31 | × | x | + | 212 | ÷ | 31 | × | ( | x | + | 15 | ) | + | 93 | ÷ | 31 | × | ( | x | + | 30 | ) | = | 1256 |
| Left side of the equation = | ( | 124 | + | 315 | ) | × | 1 31 | x | + | 212 31 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| ( | 124 | + | 315 | ) | × | 1 31 | x | + | 212 31 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) | = | 1256 |
| Left side of the equation = | 124 | × | 1 31 | x | + | 315 | × | 1 31 | x | + | 212 31 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 4 | x | + | 315 31 | x | + | 212 31 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 439 31 | x | + | 212 31 | ( | x | + | 15 | ) | + | 3 | ( | x | + | 30 | ) |
| = | 439 31 | x | + | 212 31 | x | + | 212 31 | × | 15 | + | 3 | ( | x | + | 30 | ) |
| = | 439 31 | x | + | 212 31 | x | + | 3180 31 | + | 3 | ( | x | + | 30 | ) |
| = | 21 | x | + | 3180 31 | + | 3 | ( | x | + | 30 | ) |
| = | 21 | x | + | 3180 31 | + | 3 | x | + | 3 | × | 30 |
| = | 21 | x | + | 3180 31 | + | 3 | x | + | 90 |
| = | 24 | x | + | 5970 31 |
| 24 | x | + | 5970 31 | = | 1256 |
| 24 | x | = | 1256 | − | 5970 31 |
| 24 | x | = | 32966 31 |
| x | = | 32966 31 | ÷ | 24 |
| = | 32966 31 | × | 1 24 |
| = | 16483 31 | × | 1 12 |
| x | = | 16483 372 |
| x | = | 44.30914 |