657 25 | × | 270 | × | 36 | + | 2097 100 | × | 270 | ( | x | − | 36 | ) | = | 447 | × | 308 | + | 443 | × | 402 | − | 447 | × | 462 | − | 459 | × | 509 |
| Left side of the equation = | 1277208 5 | + | 56619 10 | ( | x | − | 36 | ) |
1277208 5 | + | 56619 10 | ( | x | − | 36 | ) | = | 447 | × | 308 | + | 443 | × | 402 | − | 447 | × | 462 | − | 459 | × | 509 |
| Left side of the equation = | 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 | = | 447 | × | 308 | + | 443 | × | 402 | − | 447 | × | 462 | − | 459 | × | 509 |
| Right side of the equation = | 137676 | + | 178086 | − | 206514 | − | 233631 |
| = | - | 124383 |
258066 5 | + | 56619 10 | x | = | - | 124383 |
56619 10 | x | = | - | 124383 | − | 258066 5 |
56619 10 | x | = | - | 879981 5 |
| x | = | - | 879981 5 | ÷ | 56619 10 |
| = | - | 879981 5 | × | 10 56619 |
| = | - | 293327 | × | 2 18873 |
| x | = | - | 586654 18873 |
| x | = | - 31.0843 |