| ( | 3 | y | − | 2 | ) | ÷ | 2020 | − | 3 | = | 2020 | ( | 3 | y | − | 2 | ) | − | ( | - | 4080396 | ) |
| 方程左边 = | 3 | y | × | 1 2020 | − | 2 | × | 1 2020 | − | 3 |
| = | 3 2020 | y | − | 1 1010 | − | 3 |
| = | 3 2020 | y | − | 3031 1010 |
3 2020 | y | − | 3031 1010 | = | 2020 | ( | 3 | y | − | 2 | ) | − | ( | - | 4080396 | ) |
| 方程右边 = | 2020 | × | 3 | y | − | 2020 | × | 2 | − | ( | - | 4080396 | ) |
| = | 6060 | y | − | 4040 | − | ( | - | 4080396 | ) |
| = | 6060 | y | − | 4040 | + | 4080396 |
| = | 6060 | y | + | 4076356 |
3 2020 | y | − | 3031 1010 | = | 6060 | y | + | 4076356 |
3 2020 | y | − | 6060 | y | = | 4076356 | + | 3031 1010 |
| - | 12241197 2020 | y | = | 4076356 | + | 3031 1010 |
| - | 12241197 2020 | y | = | 4117122591 1010 |
| - | 4117122591 1010 | = | 12241197 2020 | y |
12241197 2020 | y | = | - | 4117122591 1010 |
| y | = | - | 4117122591 1010 | ÷ | 12241197 2020 |
| = | - | 4117122591 1010 | × | 2020 12241197 |
| = | - | 679057 101 | × | 202 2019 |
| y | = | - | 137169514 203919 |
| y | = | - | 1358114 2019 |
| y | = | - 672.666667 |