| 1400 | X | − | ( | 400 | + | 550 | X | ) | − | ( | 1400 | X | × | 17 100 | ÷ | 117 100 | − | 50 | X | ) | × | 11 10 | = | 0 |
| Left side of the equation = | 1400 | X | − | 400 | − | 550 | X | − | ( | 1400 | X | × | 17 100 | ÷ | 117 100 | − | 50 | X | ) | × | 11 10 |
| = | 850 | X | − | 400 | − | ( | 1400 | X | × | 17 100 | ÷ | 117 100 | − | 50 | X | ) | × | 11 10 |
| = | 850 | X | − | 400 | − | 1400 | X | × | 17 100 | ÷ | 117 100 | × | 11 10 | + | 50 | X | × | 11 10 |
| = | 850 | X | − | 400 | − | 26180 117 | X | + | 55 | X |
| = | 79705 117 | X | − | 400 |
79705 117 | X | − | 400 | = | 0 |
79705 117 | X | = | 0 | + | 400 |
79705 117 | X | = | 400 |
| X | = | 400 | ÷ | 79705 117 |
| = | 400 | × | 117 79705 |
| = | 80 | × | 117 15941 |
| X | = | 9360 15941 |
| X | = | 0.587165 |