| ( | 65670 | − | x | ) | × | 3 50 | + | x | = | 89687 5 |
| Left side of the equation = | 65670 | × | 3 50 | − | x | × | 3 50 | + | x |
| = | 19701 5 | − | x | × | 3 50 | + | x |
| = | 19701 5 | + | 47 50 | x |
19701 5 | + | 47 50 | x | = | 89687 5 |
47 50 | x | = | 89687 5 | − | 19701 5 |
47 50 | x | = | 69986 5 |
| x | = | 69986 5 | ÷ | 47 50 |
| = | 69986 5 | × | 50 47 |
| = | 69986 | × | 10 47 |
| x | = | 699860 47 |
| x | = | 14890.638298 |