119 10 | × | 400 | x | + | 1608 | × | 300 | − | ( | 298320 | ÷ | x | − | 660 | ) | × | 1608 | + | 9 10 | × | 215 | × | 11503 5 | − | ( | 318962 | ÷ | x | − | 680 | ) | × | 11503 5 | = | 2500000 |
119 10 | × | 400 | x | + | 1608 | × | 300 | − | 298320 | ÷ | x | × | 1608 | + | 660 | × | 1608 | + | 9 10 | × | 215 | = | 2500000 |
4760 | x | + | 482400 | − | 479698560 | ÷ | x | + | 1061280 | + | 4451661 10 | − | ( | 318962 | ÷ | x | − | 680 | ) | × | 11503 5 | = | 2500000 |
4760 | x | + | 19888461 10 | − | 479698560 | ÷ | x | − | ( | 318962 | ÷ | x | − | 680 | ) | × | 11503 5 | = | 2500000 |
方程两边同时乘以: | x |
4760 | x | x | + | 19888461 10 | x | − | 479698560 | − | ( | 318962 | ÷ | x | − | 680 | ) | × | 11503 5 | x | = | 2500000 | x |
4760 | x | x | + | 19888461 10 | x | − | 479698560 | − | 318962 | ÷ | x | × | 11503 5 | x | + | 680 | × | 11503 5 | = | 2500000 | x |
4760 | x | x | + | 19888461 10 | x | − | 479698560 | − | 3669019886 5 | ÷ | x | × | x | + | 1564408 | x | = | 2500000 | x |
4760 | x | x | + | 35532541 10 | x | − | 479698560 | − | 3669019886 5 | ÷ | x | × | x | = | 2500000 | x |