4 | + | ( | 18 | − | 80 | x | ÷ | 544 | ) | ÷ | 13743 5000 | = | ( | 21 10 | ÷ | x | ÷ | 1600 | − | 120 | ) | × | 7 100 |
4 | + | 18 | ÷ | 13743 5000 | − | 80 | x | ÷ | 544 | ÷ | 13743 5000 | = | ( | 21 10 | ÷ | x | ÷ | 1600 | − | 120 | ) | × | 7 100 |
4 | + | 18 | ÷ | 13743 5000 | − | 80 | x | ÷ | 544 | ÷ | 13743 5000 | = | 21 10 | ÷ | x | ÷ | 1600 | × | 7 100 | − | 120 | × | 7 100 |
4 | + | 10000 1527 | − | 12500 233631 | x | = | 147 1600000 | ÷ | x | − | 42 5 |
16108 1527 | − | 12500 233631 | x | = | 147 1600000 | ÷ | x | − | 42 5 |
方程两边同时乘以: | x |
16108 1527 | x | − | 12500 233631 | x | x | = | 147 1600000 | − | 42 5 | x |