| x | − | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | x | ÷ | 109 100 | × | 1 2000 | − | ( | x | − | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | x | ÷ | 109 100 | × | 1 2000 | − | 4500 | ) | × | 30 100 | = | 4500 |
| Left side of the equation = | x | − | x | × | 252 2725 | − | x | × | 1 2180 | − | ( | x | − | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | x | ÷ | 109 100 | × | 1 2000 | − | 4500 | ) | × | 30 100 |
| = | 9887 10900 | x | − | ( | x | − | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | x | ÷ | 109 100 | × | 1 2000 | − | 4500 | ) | × | 30 100 |
9887 10900 | x | − | ( | x | − | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | − | x | ÷ | 109 100 | × | 1 2000 | − | 4500 | ) | × | 30 100 | = | 4500 |
| Left side of the equation = | 9887 10900 | x | − | x | × | 30 100 | + | x | ÷ | 109 100 | × | 9 100 | × | 28 25 | × | 30 100 | + | x | ÷ | 109 100 | × | 1 2000 |
| = | 9887 10900 | x | − | x | × | 30 100 | + | x | × | 378 13625 | + | x | × | 3 21800 | + | 1350 |
| = | 69209 109000 | x | + | 1350 |
69209 109000 | x | + | 1350 | = | 4500 |
69209 109000 | x | = | 4500 | − | 1350 |
69209 109000 | x | = | 3150 |
| x | = | 3150 | ÷ | 69209 109000 |
| = | 3150 | × | 109000 69209 |
| = | 450 | × | 109000 9887 |
| x | = | 49050000 9887 |
| x | = | 4961.059978 |