9 10 | × | 657 25 | × | 270 | × | 36 | + | 391 20 | × | 270 | ( | x | − | 36 | ) | = | 308 | × | 443 | + | 9 10 | × | 402 | × | 440 | − | 9 10 | × | 509 | × | 459 | − | ( | 660 | ( | 5 4 | x | − | 61 | ) | ) | ÷ | 5 4 | × | x |
| Left side of the equation = | 5747436 25 | + | 10557 2 | ( | x | − | 36 | ) |
5747436 25 | + | 10557 2 | ( | x | − | 36 | ) | = | 308 | × | 443 | + | 9 10 | × | 402 | × | 440 | − | 9 10 | × | 509 | × | 459 | − | ( | 660 | ( | 5 4 | x | − | 61 | ) | ) | ÷ | 5 4 | × | x |
| Left side of the equation = | 5747436 25 | + | 10557 2 | x | − | 10557 2 | × | 36 |
| = | 5747436 25 | + | 10557 2 | x | − | 190026 |
| = | 996786 25 | + | 10557 2 | x |
996786 25 | + | 10557 2 | x | = | 308 | × | 443 | + | 9 10 | × | 402 | × | 440 | − | 9 10 | × | 509 | × | 459 | − | ( | 660 | ( | 5 4 | x | − | 61 | ) | ) | ÷ | 5 4 | × | x |
| Right side of the equation = | 136444 | + | 159192 | − | 2102679 10 | − | ( | 660 | ( | 5 4 | x | − | 61 | ) | ) | × | 4 5 | x |
| = | 853681 10 | − | ( | 660 | ( | 5 4 | x | − | 61 | ) | ) | × | 4 5 | x |
996786 25 | + | 10557 2 | x | = | 853681 10 | − | ( | 660 | ( | 5 4 | x | − | 61 | ) | ) | × | 4 5 | x |
| Right side of the equation = | 853681 10 | − | 660 | ( | 5 4 | x | − | 61 | ) | × | 4 5 | x |
| = | 853681 10 | − | 528 | ( | 5 4 | x | − | 61 | ) | x |
| = | 853681 10 | − | 528 | × | 5 4 | x | x | + | 528 | × | 61 | x |
| = | 853681 10 | − | 660 | x | x | + | 32208 | x |
996786 25 | + | 10557 2 | x | = | 853681 10 | − | 660 | x | x | + | 32208 | x |