| ( | ( | X | ( | 1 | − | 60 100 | ) | − | 2500 | − | 375 | − | 280 | ) | ( | 1 | − | 25 100 | ) | − | 240 | ) | ÷ | 600 | = | 0 |
| Left side of the equation = | ( | X | ( | 1 | − | 60 100 | ) | − | 2500 | − | 375 | − | 280 | ) | ( | 1 | − | 25 100 | ) | × | 1 600 | − | 240 | × | 1 600 |
| = | ( | X | ( | 1 | − | 60 100 | ) | − | 2500 | − | 375 | − | 280 | ) | ( | 1 | − | 25 100 | ) | × | 1 600 | − | 2 5 |
| = | X | ( | 1 | − | 60 100 | ) | ( | 1 | − | 25 100 | ) | × | 1 600 | − | 2500 | ( | 1 | − | 25 100 | ) | × | 1 600 | − | 375 | ( | 1 | − | 25 100 | ) | × | 1 600 | − | 280 | ( | 1 | − | 25 100 | ) |
| = | X | ( | 1 | − | 60 100 | ) | ( | 1 | − | 25 100 | ) | × | 1 600 | − | 25 6 | ( | 1 | − | 25 100 | ) | − | 5 8 | ( | 1 | − | 25 100 | ) | − | 7 15 | ( | 1 | − | 25 100 | ) | − | 2 5 |
| = | X | × | 1 | ( | 1 | − | 25 100 | ) | × | 1 600 | − | X | × | 60 100 | ( | 1 | − | 25 100 | ) | × | 1 600 | − | 25 6 | ( | 1 | − | 25 100 | ) | − | 5 8 | ( | 1 | − | 25 100 | ) |
| = | X | × | 1 600 | ( | 1 | − | 25 100 | ) | − | X | × | 1 1000 | ( | 1 | − | 25 100 | ) | − | 25 6 | ( | 1 | − | 25 100 | ) | − | 5 8 | ( | 1 | − | 25 100 | ) | − | 7 15 | ( | 1 | − | 25 100 | ) |
| = | X | × | 1 600 | × | 1 | − | X | × | 1 600 | × | 25 100 | − | X | × | 1 1000 | ( | 1 | − | 25 100 | ) | − | 25 6 | ( | 1 | − | 25 100 | ) | − | 5 8 |
| = | X | × | 1 600 | − | X | × | 1 2400 | − | X | × | 1 1000 | ( | 1 | − | 25 100 | ) | − | 25 6 | ( | 1 | − | 25 100 | ) | − | 5 8 | ( | 1 | − | 25 100 | ) | − | 7 15 |
| = | 1 800 | X | − | X | × | 1 1000 | ( | 1 | − | 25 100 | ) | − | 25 6 | ( | 1 | − | 25 100 | ) | − | 5 8 | ( | 1 | − | 25 100 | ) | − | 7 15 | ( | 1 | − | 25 100 | ) | − | 2 5 |
| = | 1 800 | X | − | X | × | 1 1000 | × | 1 | + | X | × | 1 1000 | × | 25 100 | − | 25 6 | ( | 1 | − | 25 100 | ) | − | 5 8 | ( | 1 | − | 25 100 | ) |
| = | 1 800 | X | − | X | × | 1 1000 | + | X | × | 1 4000 | − | 25 6 | ( | 1 | − | 25 100 | ) | − | 5 8 | ( | 1 | − | 25 100 | ) | − | 7 15 | ( | 1 | − | 25 100 | ) |
| = | 1 2000 | X | − | 25 6 | ( | 1 | − | 25 100 | ) | − | 5 8 | ( | 1 | − | 25 100 | ) | − | 7 15 | ( | 1 | − | 25 100 | ) | − | 2 5 |
| = | 1 2000 | X | − | 25 6 | × | 1 | + | 25 6 | × | 25 100 | − | 5 8 | ( | 1 | − | 25 100 | ) | − | 7 15 | ( | 1 | − | 25 100 | ) | − | 2 5 |
| = | 1 2000 | X | − | 25 6 | + | 25 24 | − | 5 8 | ( | 1 | − | 25 100 | ) | − | 7 15 | ( | 1 | − | 25 100 | ) | − | 2 5 |
| = | 1 2000 | X | − | 141 40 | − | 5 8 | ( | 1 | − | 25 100 | ) | − | 7 15 | ( | 1 | − | 25 100 | ) |
| = | 1 2000 | X | − | 141 40 | − | 5 8 | × | 1 | + | 5 8 | × | 25 100 | − | 7 15 | ( | 1 | − | 25 100 | ) |
| = | 1 2000 | X | − | 141 40 | − | 5 8 | + | 5 32 | − | 7 15 | ( | 1 | − | 25 100 | ) |
| = | 1 2000 | X | − | 639 160 | − | 7 15 | ( | 1 | − | 25 100 | ) |
| = | 1 2000 | X | − | 639 160 | − | 7 15 | × | 1 | + | 7 15 | × | 25 100 |
| = | 1 2000 | X | − | 639 160 | − | 7 15 | + | 7 60 |
| = | 1 2000 | X | − | 139 32 |
1 2000 | X | − | 139 32 | = | 0 |
1 2000 | X | = | 0 | + | 139 32 |
1 2000 | X | = | 139 32 |
| X | = | 139 32 | ÷ | 1 2000 |
| = | 139 32 | × | 2000 |
| = | 139 2 | × | 125 |
| X | = | 17375 2 |
| X | = | 8687.5 |