| 375 | ( | 1 | ÷ | 50 | + | 1 | ÷ | 19 2 | + | 2 | x | ÷ | 1 10 | + | x | ÷ | 3 50 | ) | = | 25 | ÷ | ( | 1 | ÷ | 19 2 | ) |
| 方程两边同时乘以: | ( | 1 | ÷ | 19 2 | ) |
| 375 | ( | 1 | ÷ | 50 | + | 1 | ÷ | 19 2 | + | 2 | x | ÷ | 1 10 | + | x | ÷ | 3 50 | ) | ( | 1 | ÷ | 19 2 | ) | = | 25 |
| 375 | × | 1 | ÷ | 50 | × | ( | 1 | ÷ | 19 2 | ) | + | 375 | × | 1 | ÷ | 19 2 | × | ( | 1 | ÷ | 19 2 | ) | + | 375 | × | 2 | x | ÷ | 1 10 | = | 25 |
15 2 | ( | 1 | ÷ | 19 2 | ) | + | 750 19 | ( | 1 | ÷ | 19 2 | ) | + | 7500 | x | ( | 1 | ÷ | 19 2 | ) | + | 6250 | x | ( | 1 | ÷ | 19 2 | ) | = | 25 |
15 2 | × | 1 | ÷ | 19 2 | + | 750 19 | ( | 1 | ÷ | 19 2 | ) | + | 7500 | x | ( | 1 | ÷ | 19 2 | ) | + | 6250 | x | ( | 1 | ÷ | 19 2 | ) | = | 25 |
15 19 | + | 750 19 | ( | 1 | ÷ | 19 2 | ) | + | 7500 | x | ( | 1 | ÷ | 19 2 | ) | + | 6250 | x | ( | 1 | ÷ | 19 2 | ) | = | 25 |
15 19 | + | 750 19 | × | 1 | ÷ | 19 2 | + | 7500 | x | ( | 1 | ÷ | 19 2 | ) | + | 6250 | x | ( | 1 | ÷ | 19 2 | ) | = | 25 |
15 19 | + | 1500 361 | + | 7500 | x | ( | 1 | ÷ | 19 2 | ) | + | 6250 | x | ( | 1 | ÷ | 19 2 | ) | = | 25 |
1785 361 | + | 7500 | x | ( | 1 | ÷ | 19 2 | ) | + | 6250 | x | ( | 1 | ÷ | 19 2 | ) | = | 25 |
1785 361 | + | 7500 | x | × | 1 | ÷ | 19 2 | + | 6250 | x | ( | 1 | ÷ | 19 2 | ) | = | 25 |
1785 361 | + | 15000 19 | x | + | 6250 | x | ( | 1 | ÷ | 19 2 | ) | = | 25 |
1785 361 | + | 15000 19 | x | + | 6250 | x | × | 1 | ÷ | 19 2 | = | 25 |
1785 361 | + | 15000 19 | x | + | 12500 19 | x | = | 25 |
1785 361 | + | 27500 19 | x | = | 25 |
27500 19 | x | = | 25 | − | 1785 361 |
27500 19 | x | = | 7240 361 |
| x | = | 7240 361 | ÷ | 27500 19 |
| = | 7240 361 | × | 19 27500 |
| = | 362 19 | × | 1 1375 |
| x | = | 362 26125 |
| x | = | 0.013856 |