657 25 | × | 270 | × | 36 | + | 2097 100 | × | 270 | ( | x | − | 36 | ) | = | 443 | × | 308 | + | 440 | × | 402 | − | 459 | × | 509 | − | 459 | × | 509 |
| 方程左边 = | 1277208 5 | + | 56619 10 | ( | x | − | 36 | ) |
1277208 5 | + | 56619 10 | ( | x | − | 36 | ) | = | 443 | × | 308 | + | 440 | × | 402 | − | 459 | × | 509 | − | 459 | × | 509 |
| 方程左边 = | 1277208 5 | + | 56619 10 | x | − | 56619 10 | × | 36 |
| = | 1277208 5 | + | 56619 10 | x | − | 1019142 5 |
| = | 258066 5 | + | 56619 10 | x |
258066 5 | + | 56619 10 | x | = | 443 | × | 308 | + | 440 | × | 402 | − | 459 | × | 509 | − | 459 | × | 509 |
| 方程右边 = | 136444 | + | 176880 | − | 233631 | − | 233631 |
| = | - | 153938 |
258066 5 | + | 56619 10 | x | = | - | 153938 |
56619 10 | x | = | - | 153938 | − | 258066 5 |
56619 10 | x | = | - | 1027756 5 |
| x | = | - | 1027756 5 | ÷ | 56619 10 |
| = | - | 1027756 5 | × | 10 56619 |
| = | - | 1027756 | × | 2 56619 |
| x | = | - | 2055512 56619 |
| x | = | - 36.304279 |