( | ( | 139041 50 | − | x | − | 613993 100 | ) | ÷ | 613993 100 | ) | × | 1 2 | = | ( | ( | 232721 100 | + | x | ) | − | 371613 100 | ) | ÷ | 371613 100 |
Left side of the equation = | ( | 139041 50 | − | x | − | 613993 100 | ) | ÷ | 613993 100 | × | 1 2 |
= | ( | 139041 50 | − | x | − | 613993 100 | ) | × | 50 613993 |
= | 139041 50 | × | 50 613993 | − | x | × | 50 613993 | − | 613993 100 | × | 50 613993 |
= | 139041 613993 | − | x | × | 50 613993 | − | 613993 1227986 |