157 50 | × | 400 | ( | x | × | 22 | + | 33 10 | × | 28 | + | 33 5 | × | 45 | + | 21 5 | × | 20 | + | 3 5 | × | 75 | ) | = | 872 |
| Left side of the equation = | 1256 | ( | x | × | 22 | + | 33 10 | × | 28 | + | 33 5 | × | 45 | + | 21 5 | × | 20 | + | 3 5 | × | 75 | ) |
| 1256 | ( | x | × | 22 | + | 33 10 | × | 28 | + | 33 5 | × | 45 | + | 21 5 | × | 20 | + | 3 5 | × | 75 | ) | = | 872 |
| Left side of the equation = | 1256 | x | × | 22 | + | 1256 | × | 33 10 | × | 28 | + | 1256 | × | 33 5 | × | 45 | + | 1256 | × | 21 5 | × | 20 |
| = | 27632 | x | + | 580272 5 | + | 373032 | + | 105504 | + | 56520 |
| = | 27632 | x | + | 3255552 5 |
| 27632 | x | + | 3255552 5 | = | 872 |
| 27632 | x | = | 872 | − | 3255552 5 |
| 27632 | x | = | - | 3251192 5 |
| x | = | - | 3251192 5 | ÷ | 27632 |
| = | - | 3251192 5 | × | 1 27632 |
| = | - | 406399 5 | × | 1 3454 |
| x | = | - | 406399 17270 |
| x | = | - 23.532079 |