9 10 | × | 657 25 | × | 390 | × | 60 | + | 377 20 | × | 390 | ( | x | − | 60 | ) | = | - | ( | 509 | × | 640 | ( | 5 4 | x | − | 195 | ) | ) | ÷ | ( | 5 4 | x | ) | + | 459 | × | 764 | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) | ÷ | ( | 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 | ) | = | - | ( | 509 | × | 640 | ( | 5 4 | x | − | 195 | ) | ) | + | 459 | × | 764 | ( | 5 4 | x | ) | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
9 10 | × | 657 25 | × | 390 | × | 60 | × | 5 4 | x | + | 377 20 | × | 390 | ( | x | − | 60 | ) | ( | 5 4 | x | ) | = | - | ( | 509 | × | 640 | ( | 5 4 | x | − | 195 | ) | ) | + | 459 | × | 764 | ( | 5 4 | x | ) | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
9 10 | × | 657 25 | × | 390 | × | 60 | × | 5 4 | x | + | 377 20 | × | 390 | ( | x | − | 60 | ) | ( | 5 4 | x | ) | = | - | 509 | × | 640 | ( | 5 4 | x | − | 195 | ) | + | 459 | × | 764 | ( | 5 4 | x | ) | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
| 691821 | x | + | 14703 2 | ( | x | − | 60 | ) | ( | 5 4 | x | ) | = | - | 325760 | ( | 5 4 | x | − | 195 | ) | + | 350676 | ( | 5 4 | x | ) | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
| 691821 | x | + | 14703 2 | x | ( | 5 4 | x | ) | − | 14703 2 | × | 60 | ( | 5 4 | x | ) | = | - | 325760 | ( | 5 4 | x | − | 195 | ) | + | 350676 | ( | 5 4 | x | ) | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
| 691821 | x | + | 14703 2 | x | ( | 5 4 | x | ) | − | 14703 2 | × | 60 | ( | 5 4 | x | ) | = | - | 325760 | × | 5 4 | x | + | 325760 | × | 195 | + | 350676 | ( | 5 4 | x | ) | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
| 691821 | x | + | 14703 2 | x | ( | 5 4 | x | ) | − | 441090 | ( | 5 4 | x | ) | = | - | 407200 | x | + | 63523200 | + | 350676 | ( | 5 4 | x | ) | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
| 691821 | x | + | 14703 2 | x | × | 5 4 | x | − | 441090 | ( | 5 4 | x | ) | = | - | 407200 | x | + | 63523200 | + | 350676 | ( | 5 4 | x | ) | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
| 691821 | x | + | 14703 2 | x | × | 5 4 | x | − | 441090 | ( | 5 4 | x | ) | = | - | 407200 | x | + | 63523200 | + | 350676 | × | 5 4 | x | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
| 691821 | x | + | 73515 8 | x | x | − | 441090 | ( | 5 4 | x | ) | = | - | 407200 | x | + | 63523200 | + | 438345 | x | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
| 691821 | x | + | 73515 8 | x | x | − | 441090 | ( | 5 4 | x | ) | = | 31145 | x | + | 63523200 | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
| 691821 | x | + | 73515 8 | x | x | − | 441090 | × | 5 4 | x | = | 31145 | x | + | 63523200 | − | ( | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) | ) |
| 691821 | x | + | 73515 8 | x | x | − | 441090 | × | 5 4 | x | = | 31145 | x | + | 63523200 | − | 764 | × | 640 | ( | 5 4 | x | − | 87 | ) |
| 691821 | x | + | 73515 8 | x | x | − | 1102725 2 | x | = | 31145 | x | + | 63523200 | − | 488960 | ( | 5 4 | x | − | 87 | ) |
280917 2 | x | + | 73515 8 | x | x | = | 31145 | x | + | 63523200 | − | 488960 | ( | 5 4 | x | − | 87 | ) |
280917 2 | x | + | 73515 8 | x | x | = | 31145 | x | + | 63523200 | − | 488960 | × | 5 4 | x | + | 488960 | × | 87 |
280917 2 | x | + | 73515 8 | x | x | = | 31145 | x | + | 63523200 | − | 611200 | x | + | 42539520 |
280917 2 | x | + | 73515 8 | x | x | = | - | 580055 | x | + | 106062720 |