3 20 | = | 1 | ÷ | ( | 1 25 | ÷ | 93 100 | + | 1 5 | ÷ | 7 25 | + | x | ÷ | 23 1000 | ) |
| 方程两边同时乘以: | ( | 1 25 | ÷ | 93 100 | + | 1 5 | ÷ | 7 25 | + | x | ÷ | 23 1000 | ) |
3 20 | ( | 1 25 | ÷ | 93 100 | + | 1 5 | ÷ | 7 25 | + | x | ÷ | 23 1000 | ) | = | 1 |
3 20 | × | 1 25 | ÷ | 93 100 | + | 3 20 | × | 1 5 | ÷ | 7 25 | + | 3 20 | x | ÷ | 23 1000 | = | 1 |
1 155 | + | 3 28 | + | 150 23 | x | = | 1 |
493 4340 | + | 150 23 | x | = | 1 |
150 23 | x | = | 1 | − | 493 4340 |
150 23 | x | = | 3847 4340 |
| x | = | 3847 4340 | ÷ | 150 23 |
| = | 3847 4340 | × | 23 150 |
| x | = | 88481 651000 |
| x | = | 0.135916 |