| 20 | × | 157 50 | × | 1 2 | ( | x | − | 20 | ) | = | ( | 2 | × | 157 50 | × | 147 1000 | ( | 560 | − | x | ) | ) | ÷ | 2231 10000 |
| Left side of the equation = | 157 5 | ( | x | − | 20 | ) |
157 5 | ( | x | − | 20 | ) | = | ( | 2 | × | 157 50 | × | 147 1000 | ( | 560 | − | x | ) | ) | ÷ | 2231 10000 |
| Left side of the equation = | 157 5 | x | − | 157 5 | × | 20 |
| = | 157 5 | x | − | 628 |
157 5 | x | − | 628 | = | ( | 2 | × | 157 50 | × | 147 1000 | ( | 560 | − | x | ) | ) | ÷ | 2231 10000 |
| Right side of the equation = | 2 | × | 157 50 | × | 147 1000 | ( | 560 | − | x | ) | × | 10000 2231 |
| = | 46158 11155 | ( | 560 | − | x | ) |
| = | 46158 11155 | × | 560 | − | 46158 11155 | x |
| = | 5169696 2231 | − | 46158 11155 | x |
157 5 | x | − | 628 | = | 5169696 2231 | − | 46158 11155 | x |
157 5 | x | + | 46158 11155 | x | = | 5169696 2231 | + | 628 |
79285 2231 | x | = | 5169696 2231 | + | 628 |
79285 2231 | x | = | 6570764 2231 |
| x | = | 6570764 2231 | ÷ | 79285 2231 |
| = | 6570764 2231 | × | 2231 79285 |
| = | 41852 | × | 1 505 |
| x | = | 41852 505 |
| x | = | 82.875248 |