| ( | 25564 5 | − | y | ) | ÷ | y | = | 73 1000 |
| 方程两边同时乘以: | y |
| ( | 25564 5 | − | y | ) | = | 73 1000 | y |
25564 5 | − | y | = | 73 1000 | y |
| - | y | − | 73 1000 | y | = | - | 25564 5 |
| - | 1073 1000 | y | = | - | 25564 5 |
25564 5 | = | 1073 1000 | y |
1073 1000 | y | = | 25564 5 |
| y | = | 25564 5 | ÷ | 1073 1000 |
| = | 25564 5 | × | 1000 1073 |
| = | 25564 | × | 200 1073 |
| y | = | 5112800 1073 |
| y | = | 4764.958062 |