| - | 55 | + | X | − | ( | X | × | 4 100 | ) | ÷ | 4 | − | 5 | = | 10 |
| Left side of the equation = | - | 60 | + | X | − | ( | X | × | 4 100 | ) | × | 1 4 |
| - | 60 | + | X | − | ( | X | × | 4 100 | ) | × | 1 4 | = | 10 |
| Left side of the equation = | - | 60 | + | X | − | X | × | 4 100 | × | 1 4 |
| = | - | 60 | + | X | − | X | × | 1 100 |
| = | - | 60 | + | 99 100 | X |
| - | 60 | + | 99 100 | X | = | 10 |
99 100 | X | = | 10 | + | 60 |
99 100 | X | = | 70 |
| X | = | 70 | ÷ | 99 100 |
| = | 70 | × | 100 99 |
| X | = | 7000 99 |
| X | = | 70.707071 |