4 | + | ( | ( | 18 | − | 10 | x | ÷ | 544 | ) | ÷ | 4581 50 | ) | × | 3 100 | = | ( | 21 10 | ÷ | x | ÷ | 1600 | − | 120 | ) | × | 7 100 |
4 | + | ( | 18 | − | 10 | x | ÷ | 544 | ) | ÷ | 4581 50 | × | 3 100 | = | ( | 21 10 | ÷ | x | ÷ | 1600 | − | 120 | ) | × | 7 100 |
4 | + | ( | 18 | − | 10 | x | ÷ | 544 | ) | ÷ | 4581 50 | × | 3 100 | = | 21 10 | ÷ | x | ÷ | 1600 | × | 7 100 | − | 120 | × | 7 100 |
4 | + | ( | 18 | − | 10 | x | ÷ | 544 | ) | × | 1 3054 | = | 147 1600000 | ÷ | x | − | 42 5 |
方程两边同时乘以: | x |
4 | x | + | ( | 18 | − | 10 | x | ÷ | 544 | ) | × | 1 3054 | x | = | 147 1600000 | − | 42 5 | x |
4 | x | + | 18 | × | 1 3054 | x | − | 10 | x | ÷ | 544 | × | 1 3054 | x | = | 147 1600000 | − | 42 5 | x |
4 | x | + | 3 509 | x | − | 5 830688 | x | x | = | 147 1600000 | − | 42 5 | x |
2039 509 | x | − | 5 830688 | x | x | = | 147 1600000 | − | 42 5 | x |