3 20 | = | 1 | ÷ | ( | 1 25 | ÷ | 93 100 | + | 1 5 | ÷ | 13 100 | + | x | ÷ | 23 1000 | ) |
| 方程两边同时乘以: | ( | 1 25 | ÷ | 93 100 | + | 1 5 | ÷ | 13 100 | + | x | ÷ | 23 1000 | ) |
3 20 | ( | 1 25 | ÷ | 93 100 | + | 1 5 | ÷ | 13 100 | + | x | ÷ | 23 1000 | ) | = | 1 |
3 20 | × | 1 25 | ÷ | 93 100 | + | 3 20 | × | 1 5 | ÷ | 13 100 | + | 3 20 | x | ÷ | 23 1000 | = | 1 |
1 155 | + | 3 13 | + | 150 23 | x | = | 1 |
478 2015 | + | 150 23 | x | = | 1 |
150 23 | x | = | 1 | − | 478 2015 |
150 23 | x | = | 1537 2015 |
| x | = | 1537 2015 | ÷ | 150 23 |
| = | 1537 2015 | × | 23 150 |
| x | = | 35351 302250 |
| x | = | 0.116959 |