| ( | 42309 1000 | + | x | ) | × | 29 20 | = | 36459 500 | − | x | + | 42309 1000 |
| Left side of the equation = | 42309 1000 | × | 29 20 | + | x | × | 29 20 |
| = | 1226961 20000 | + | x | × | 29 20 |
1226961 20000 | + | 29 20 | x | = | 36459 500 | − | x | + | 42309 1000 |
| Right side of the equation = | 115227 1000 | − | x |
1226961 20000 | + | 29 20 | x | = | 115227 1000 | − | x |
29 20 | x | + | x | = | 115227 1000 | − | 1226961 20000 |
49 20 | x | = | 115227 1000 | − | 1226961 20000 |
49 20 | x | = | 1077579 20000 |
| x | = | 1077579 20000 | ÷ | 49 20 |
| = | 1077579 20000 | × | 20 49 |
| = | 1077579 1000 | × | 1 49 |
| x | = | 1077579 49000 |
| x | = | 21.991408 |