657 25 | × | 270 | × | 36 | + | 2097 100 | × | 270 | ( | x | − | 36 | ) | = | 447 | × | 308 | + | 443 | × | 402 | − | 459 | × | 509 | − | 660 | ( | 5 4 | x | − | 61 | ) | ÷ | ( | 5 4 | − | 36 | ) |
| 方程两边同时乘以: | ( | 5 4 | − | 36 | ) |
657 25 | × | 270 | × | 36 | ( | 5 4 | − | 36 | ) | + | 2097 100 | × | 270 | ( | x | − | 36 | ) | ( | 5 4 | − | 36 | ) | = | 447 | × | 308 | ( | 5 4 | − | 36 | ) | + | 443 | × | 402 | ( | 5 4 | − | 36 | ) | − | 459 | × | 509 | ( | 5 4 | − | 36 | ) | − | 660 | ( | 5 4 | x | − | 61 | ) |
657 25 | × | 270 | × | 36 | × | 5 4 | − | 657 25 | × | 270 | × | 36 | × | 36 | + | 2097 100 | × | 270 | ( | x | − | 36 | ) | ( | 5 4 | − | 36 | ) | = | 447 | × | 308 | ( | 5 4 | − | 36 | ) | + | 443 | × | 402 | ( | 5 4 | − | 36 | ) | − | 459 | × | 509 | ( | 5 4 | − | 36 | ) | − | 660 | ( | 5 4 | x | − | 61 | ) |
657 25 | × | 270 | × | 36 | × | 5 4 | − | 657 25 | × | 270 | × | 36 | × | 36 | + | 2097 100 | × | 270 | ( | x | − | 36 | ) | ( | 5 4 | − | 36 | ) | = | 447 | × | 308 | × | 5 4 | − | 447 | × | 308 | × | 36 | + | 443 | × | 402 | ( | 5 4 | − | 36 | ) | − | 459 | × | 509 | ( | 5 4 | − | 36 | ) |
| 319302 | − | 45979488 5 | + | 56619 10 | ( | x | − | 36 | ) | ( | 5 4 | − | 36 | ) | = | 172095 | − | 4956336 | + | 178086 | ( | 5 4 | − | 36 | ) | − | 233631 | ( | 5 4 | − | 36 | ) | − | 660 | ( | 5 4 | x | − | 61 | ) |
| - | 44382978 5 | + | 56619 10 | ( | x | − | 36 | ) | ( | 5 4 | − | 36 | ) | = | - | 4784241 | + | 178086 | ( | 5 4 | − | 36 | ) | − | 233631 | ( | 5 4 | − | 36 | ) | − | 660 | ( | 5 4 | x | − | 61 | ) |
| - | 44382978 5 | + | 56619 10 | x | ( | 5 4 | − | 36 | ) | − | 56619 10 | × | 36 | ( | 5 4 | − | 36 | ) | = | - | 4784241 | + | 178086 | ( | 5 4 | − | 36 | ) | − | 233631 | ( | 5 4 | − | 36 | ) | − | 660 | ( | 5 4 | x | − | 61 | ) |
| - | 44382978 5 | + | 56619 10 | x | ( | 5 4 | − | 36 | ) | − | 56619 10 | × | 36 | ( | 5 4 | − | 36 | ) | = | - | 4784241 | + | 178086 | × | 5 4 | − | 178086 | × | 36 | − | 233631 | ( | 5 4 | − | 36 | ) | − | 660 | ( | 5 4 | x | − | 61 | ) |
| - | 44382978 5 | + | 56619 10 | x | ( | 5 4 | − | 36 | ) | − | 1019142 5 | ( | 5 4 | − | 36 | ) | = | - | 4784241 | + | 445215 2 | − | 6411096 | − | 233631 | ( | 5 4 | − | 36 | ) | − | 660 | ( | 5 4 | x | − | 61 | ) |
| - | 44382978 5 | + | 56619 10 | x | ( | 5 4 | − | 36 | ) | − | 1019142 5 | ( | 5 4 | − | 36 | ) | = | - | 21945459 2 | − | 233631 | ( | 5 4 | − | 36 | ) | − | 660 | ( | 5 4 | x | − | 61 | ) |
| - | 44382978 5 | + | 56619 10 | x | × | 5 4 | − | 56619 10 | x | × | 36 | − | 1019142 5 | ( | 5 4 | − | 36 | ) | = | - | 21945459 2 | − | 233631 | ( | 5 4 | − | 36 | ) | − | 660 | ( | 5 4 | x | − | 61 | ) |
| - | 44382978 5 | + | 56619 10 | x | × | 5 4 | − | 56619 10 | x | × | 36 | − | 1019142 5 | ( | 5 4 | − | 36 | ) | = | - | 21945459 2 | − | 233631 | × | 5 4 | + | 233631 | × | 36 | − | 660 | ( | 5 4 | x | − | 61 | ) |
| - | 44382978 5 | + | 56619 8 | x | − | 1019142 5 | x | − | 1019142 5 | ( | 5 4 | − | 36 | ) | = | - | 21945459 2 | − | 1168155 4 | + | 8410716 | − | 660 | ( | 5 4 | x | − | 61 | ) |
| - | 44382978 5 | − | 7870041 40 | x | − | 1019142 5 | ( | 5 4 | − | 36 | ) | = | - | 11416209 4 | − | 660 | ( | 5 4 | x | − | 61 | ) |
| - | 44382978 5 | − | 7870041 40 | x | − | 1019142 5 | × | 5 4 | + | 1019142 5 | × | 36 | = | - | 11416209 4 | − | 660 | ( | 5 4 | x | − | 61 | ) |
| - | 44382978 5 | − | 7870041 40 | x | − | 1019142 5 | × | 5 4 | + | 1019142 5 | × | 36 | = | - | 11416209 4 | − | 660 | × | 5 4 | x | + | 660 | × | 61 |
| - | 44382978 5 | − | 7870041 40 | x | − | 509571 2 | + | 36689112 5 | = | - | 11416209 4 | − | 825 | x | + | 40260 |
| - | 17935587 10 | − | 7870041 40 | x | = | - | 11255169 4 | − | 825 | x |
| - | 7870041 40 | x | + | 825 | x | = | - | 11255169 4 | + | 17935587 10 |
| - | 7837041 40 | x | = | - | 11255169 4 | + | 17935587 10 |
| - | 7837041 40 | x | = | - | 20404671 20 |
20404671 20 | = | 7837041 40 | x |
7837041 40 | x | = | 20404671 20 |
| x | = | 20404671 20 | ÷ | 7837041 40 |
| = | 20404671 20 | × | 40 7837041 |
| = | 6801557 | × | 2 2612347 |
| x | = | 13603114 2612347 |
| x | = | 5.207239 |