| ( | 25712 5 | − | y | ) | ÷ | y | = | 23 1000 |
| 方程两边同时乘以: | y |
| ( | 25712 5 | − | y | ) | = | 23 1000 | y |
25712 5 | − | y | = | 23 1000 | y |
| - | y | − | 23 1000 | y | = | - | 25712 5 |
| - | 1023 1000 | y | = | - | 25712 5 |
25712 5 | = | 1023 1000 | y |
1023 1000 | y | = | 25712 5 |
| y | = | 25712 5 | ÷ | 1023 1000 |
| = | 25712 5 | × | 1000 1023 |
| = | 25712 | × | 200 1023 |
| y | = | 5142400 1023 |
| y | = | 5026.783969 |