| ( | ( | 5 | − | y | ) | ÷ | 2019 | ) | − | 5 | = | 2019 | ( | 5 | − | y | ) | − | ( | - | 8226084385 | ÷ | 2019 | ) |
| 方程左边 = | ( | 5 | − | y | ) | ÷ | 2019 | − | 5 |
| = | 5 | × | 1 2019 | − | y | × | 1 2019 | − | 5 |
| = | 5 2019 | − | y | × | 1 2019 | − | 5 |
| = | - | 10090 2019 | − | 1 2019 | y |
| - | 10090 2019 | − | 1 2019 | y | = | 2019 | ( | 5 | − | y | ) | − | ( | - | 8226084385 | ÷ | 2019 | ) |
| 方程右边 = | 2019 | × | 5 | − | 2019 | y | − | ( | - | 8226084385 | ÷ | 2019 | ) |
| = | 10095 | − | 2019 | y | − | ( | - | 8226084385 | ÷ | 2019 | ) |
| = | 10095 | − | 2019 | y | + | 8226084385 | ÷ | 2019 |
| = | 10095 | − | 2019 | y | + | 8226084385 2019 |
| = | 8246466190 2019 | − | 2019 | y |
| - | 10090 2019 | − | 1 2019 | y | = | 8246466190 2019 | − | 2019 | y |
| - | 1 2019 | y | + | 2019 | y | = | 8246466190 2019 | + | 10090 2019 |
4076360 2019 | y | = | 8246466190 2019 | + | 10090 2019 |
4076360 2019 | y | = | 8246476280 2019 |
| y | = | 8246476280 2019 | ÷ | 4076360 2019 |
| = | 8246476280 2019 | × | 2019 4076360 |
| = | 2041207 673 | × | 673 1009 |
| y | = | 1373732311 679057 |
| y | = | 2041207 1009 |
| y | = | 2023 |