9 10 | × | 657 25 | × | 390 | × | 60 | + | 377 20 | × | 390 | ( | x | − | 60 | ) | = | - | 660 | × | 509 | ( | 5 4 | x | − | 390 | ÷ | 2 | ) | ÷ | ( | 5 4 | x | ) | + | 459 | × | 764 | − | 660 | × | 764 | ( | 5 4 | x | − | 60 | − | 27 | ) | ÷ | ( | 5 4 | x | ) |
| Multiply both sides of the equation by: | ( | 5 4 | x | ) |
9 10 | × | 657 25 | × | 390 | × | 60 | ( | 5 4 | x | ) | + | 377 20 | × | 390 | ( | x | − | 60 | ) | ( | 5 4 | x | ) | = | - | 660 | × | 509 | ( | 5 4 | x | − | 390 | ÷ | 2 | ) | + | 459 | × | 764 | ( | 5 4 | x | ) | − | 660 | × | 764 | ( | 5 4 | x | − | 60 | − | 27 | ) |
9 10 | × | 657 25 | × | 390 | × | 60 | × | 5 4 | x | + | 377 20 | × | 390 | ( | x | − | 60 | ) | ( | 5 4 | x | ) | = | - | 660 | × | 509 | ( | 5 4 | x | − | 390 | ÷ | 2 | ) | + | 459 | × | 764 | ( | 5 4 | x | ) | − | 660 | × | 764 | ( | 5 4 | x | − | 60 | − | 27 | ) |
9 10 | × | 657 25 | × | 390 | × | 60 | × | 5 4 | x | + | 377 20 | × | 390 | ( | x | − | 60 | ) | ( | 5 4 | x | ) | = | - | 660 | × | 509 | × | 5 4 | x | + | 660 | × | 509 | × | 390 | ÷ | 2 | + | 459 | × | 764 | ( | 5 4 | x | ) | − | 660 |
| 691821 | x | + | 14703 2 | ( | x | − | 60 | ) | ( | 5 4 | x | ) | = | - | 419925 | x | + | 65508300 | + | 350676 | ( | 5 4 | x | ) | − | 504240 | ( | 5 4 | x | − | 60 | − | 27 | ) |
| 691821 | x | + | 14703 2 | x | ( | 5 4 | x | ) | − | 14703 2 | × | 60 | ( | 5 4 | x | ) | = | - | 419925 | x | + | 65508300 | + | 350676 | ( | 5 4 | x | ) | − | 504240 | ( | 5 4 | x | − | 60 | − | 27 | ) |
| 691821 | x | + | 14703 2 | x | ( | 5 4 | x | ) | − | 14703 2 | × | 60 | ( | 5 4 | x | ) | = | - | 419925 | x | + | 65508300 | + | 350676 | × | 5 4 | x | − | 504240 | ( | 5 4 | x | − | 60 | − | 27 | ) |
| 691821 | x | + | 14703 2 | x | ( | 5 4 | x | ) | − | 441090 | ( | 5 4 | x | ) | = | - | 419925 | x | + | 65508300 | + | 438345 | x | − | 504240 | ( | 5 4 | x | − | 60 | − | 27 | ) |
| 691821 | x | + | 14703 2 | x | ( | 5 4 | x | ) | − | 441090 | ( | 5 4 | x | ) | = | 18420 | x | + | 65508300 | − | 504240 | ( | 5 4 | x | − | 60 | − | 27 | ) |
| 691821 | x | + | 14703 2 | x | × | 5 4 | x | − | 441090 | ( | 5 4 | x | ) | = | 18420 | x | + | 65508300 | − | 504240 | ( | 5 4 | x | − | 60 | − | 27 | ) |
| 691821 | x | + | 14703 2 | x | × | 5 4 | x | − | 441090 | ( | 5 4 | x | ) | = | 18420 | x | + | 65508300 | − | 504240 | × | 5 4 | x | + | 504240 | × | 60 | + | 504240 | × | 27 |
| 691821 | x | + | 73515 8 | x | x | − | 441090 | ( | 5 4 | x | ) | = | 18420 | x | + | 65508300 | − | 630300 | x | + | 30254400 | + | 13614480 |
| 691821 | x | + | 73515 8 | x | x | − | 441090 | ( | 5 4 | x | ) | = | - | 611880 | x | + | 109377180 |
| 691821 | x | + | 73515 8 | x | x | − | 441090 | × | 5 4 | x | = | - | 611880 | x | + | 109377180 |
| 691821 | x | + | 73515 8 | x | x | − | 1102725 2 | x | = | - | 611880 | x | + | 109377180 |
280917 2 | x | + | 73515 8 | x | x | = | - | 611880 | x | + | 109377180 |