| 1100000 | + | ( | 12744 | + | 1 100 | x | ) | × | 21 20 | + | 110000 | = | x |
| Left side of the equation = | 1210000 | + | ( | 12744 | + | 1 100 | x | ) | × | 21 20 |
| 1210000 | + | ( | 12744 | + | 1 100 | x | ) | × | 21 20 | = | x |
| Left side of the equation = | 1210000 | + | 12744 | × | 21 20 | + | 1 100 | x | × | 21 20 |
| = | 1210000 | + | 66906 5 | + | 21 2000 | x |
| = | 6116906 5 | + | 21 2000 | x |
6116906 5 | + | 21 2000 | x | = | x |
21 2000 | x | − | x | = | - | 6116906 5 |
| - | 1979 2000 | x | = | - | 6116906 5 |
6116906 5 | = | 1979 2000 | x |
1979 2000 | x | = | 6116906 5 |
| x | = | 6116906 5 | ÷ | 1979 2000 |
| = | 6116906 5 | × | 2000 1979 |
| = | 6116906 | × | 400 1979 |
| x | = | 2446762400 1979 |
| x | = | 1236363.011622 |