| ( | x | − | 3 | ) | ÷ | 2019 | + | ( | x | − | 2 | ) | ÷ | 2020 | + | ( | x | − | 1 | ) | ÷ | 2021 | = | 3 |
| Left side of the equation = | x | × | 1 2019 | − | 3 | × | 1 2019 | + | ( | x | − | 2 | ) | × | 1 2020 | + | ( | x | − | 1 | ) | × | 1 2021 |
| = | x | × | 1 2019 | − | 1 673 | + | ( | x | − | 2 | ) | × | 1 2020 | + | ( | x | − | 1 | ) | × | 1 2021 |
| = | 1 2019 | x | − | 1 673 | + | x | × | 1 2020 | − | 2 | × | 1 2020 | + | ( | x | − | 1 | ) | × | 1 2021 |
| = | 1 2019 | x | − | 1 673 | + | x | × | 1 2020 | − | 1 1010 | + | ( | x | − | 1 | ) | × | 1 2021 |
| = | 4039 4078380 | x | − | 1683 679730 | + | ( | x | − | 1 | ) | × | 1 2021 |
| = | 4039 4078380 | x | − | 1683 679730 | + | x | × | 1 2021 | − | 1 | × | 1 2021 |
| = | 4039 4078380 | x | − | 1683 679730 | + | x | × | 1 2021 | − | 1 2021 |
| = | 12241199 8242405980 | x | − | 4081073 1373734330 |
12241199 8242405980 | x | − | 4081073 1373734330 | = | 3 |
12241199 8242405980 | x | = | 3 | + | 4081073 1373734330 |
12241199 8242405980 | x | = | 4125284063 1373734330 |
| x | = | 4125284063 1373734330 | ÷ | 12241199 8242405980 |
| = | 4125284063 1373734330 | × | 8242405980 12241199 |
| = | 2353271 673 | × | 4038 6983 |
| x | = | 9502508298 4699559 |
| x | = | 14119626 6983 |
| x | = | 2022 |