127 250 | ÷ | ( | 40 | ÷ | x | + | 17 2 | ) | = | 123 250 | ÷ | ( | 50 | ÷ | x | + | 34 5 | ) |
| 方程两边同时乘以: | ( | 40 | ÷ | x | + | 17 2 | ) | , | ( | 50 | ÷ | x | + | 34 5 | ) |
127 250 | ( | 50 | ÷ | x | + | 34 5 | ) | = | 123 250 | ( | 40 | ÷ | x | + | 17 2 | ) |
127 250 | × | 50 | ÷ | x | + | 127 250 | × | 34 5 | = | 123 250 | ( | 40 | ÷ | x | + | 17 2 | ) |
127 250 | × | 50 | ÷ | x | + | 127 250 | × | 34 5 | = | 123 250 | × | 40 | ÷ | x | + | 123 250 | × | 17 2 |
127 5 | ÷ | x | + | 2159 625 | = | 492 25 | ÷ | x | + | 2091 500 |
| 方程两边同时乘以: | x |
127 5 | + | 2159 625 | x | = | 492 25 | ÷ | 1 | × | 1 | + | 2091 500 | x |
2159 625 | x | − | 2091 500 | x | = | 492 25 | ÷ | 1 | × | 1 | − | 127 5 |
2159 625 | x | − | 2091 500 | x | = | 492 25 | − | 127 5 |
| - | 1819 2500 | x | = | 492 25 | − | 127 5 |
| - | 1819 2500 | x | = | - | 143 25 |
143 25 | = | 1819 2500 | x |
1819 2500 | x | = | 143 25 |
| x | = | 143 25 | ÷ | 1819 2500 |
| = | 143 25 | × | 2500 1819 |
| = | 143 | × | 100 1819 |
| x | = | 14300 1819 |
| x | = | 7.861462 |