| 65 | ÷ | 1000 | + | X | ÷ | 4457 50 | + | 13 | ÷ | 451 10 | + | 5 | ÷ | 447 10 | = | 283 50000 | ( | X | + | 90 | ) |
| Left side of the equation = | 13 200 | + | X | × | 50 4457 | + | 130 451 | + | 50 447 |
| = | 18752761 40319400 | + | 50 4457 | X |
18752761 40319400 | + | 50 4457 | X | = | 283 50000 | ( | X | + | 90 | ) |
| Right side of the equation = | 283 50000 | X | + | 283 50000 | × | 90 |
| = | 283 50000 | X | + | 2547 5000 |
18752761 40319400 | + | 50 4457 | X | = | 283 50000 | X | + | 2547 5000 |
50 4457 | X | − | 283 50000 | X | = | 2547 5000 | − | 18752761 40319400 |
1238669 222850000 | X | = | 2547 5000 | − | 18752761 40319400 |