| ( | 8100 | + | 50 | + | X | ) | × | 33 1000 | = | 4 | X |
| Left side of the equation = | 8100 | × | 33 1000 | + | 50 | × | 33 1000 | + | X | × | 33 1000 |
| = | 2673 10 | + | 33 20 | + | X | × | 33 1000 |
| = | 5379 20 | + | 33 1000 | X |
5379 20 | + | 33 1000 | X | = | 4 | X |
33 1000 | X | − | 4 | X | = | - | 5379 20 |
| - | 3967 1000 | X | = | - | 5379 20 |
5379 20 | = | 3967 1000 | X |
3967 1000 | X | = | 5379 20 |
| X | = | 5379 20 | ÷ | 3967 1000 |
| = | 5379 20 | × | 1000 3967 |
| = | 5379 | × | 50 3967 |
| X | = | 268950 3967 |
| X | = | 67.796824 |