| X | − | 1 20 | X | − | 1 10 | X | − | 3 50 | X | − | 1 10 | X | × | 1 4 | − | 117400 | = | 0 |
| Left side of the equation = | X | − | 1 20 | X | − | 1 10 | X | − | 3 50 | X | − | 1 40 | X | − | 117400 |
| = | 153 200 | X | − | 117400 |
153 200 | X | − | 117400 | = | 0 |
153 200 | X | = | 0 | + | 117400 |
153 200 | X | = | 117400 |
| X | = | 117400 | ÷ | 153 200 |
| = | 117400 | × | 200 153 |
| X | = | 23480000 153 |
| X | = | 153464.052288 |