13 100 | x | + | ( | x | × | 27 25 | + | 5 | ) | + | 3 20 | x | + | ( | 13 100 | x | × | 331 2000 | ) | = | 5721 50 |
| Left side of the equation = | 7 25 | x | + | ( | x | × | 27 25 | + | 5 | ) | + | ( | 13 100 | x | × | 331 2000 | ) |
7 25 | x | + | ( | x | × | 27 25 | + | 5 | ) | + | ( | 13 100 | x | × | 331 2000 | ) | = | 5721 50 |
| Left side of the equation = | 7 25 | x | + | x | × | 27 25 | + | 5 | + | ( | 13 100 | x | × | 331 2000 | ) |
| = | 34 25 | x | + | 5 | + | ( | 13 100 | x | × | 331 2000 | ) |
| = | 34 25 | x | + | 5 | + | 13 100 | x | × | 331 2000 |
| = | 34 25 | x | + | 5 | + | 4303 200000 | x |
| = | 276303 200000 | x | + | 5 |
276303 200000 | x | + | 5 | = | 5721 50 |
276303 200000 | x | = | 5721 50 | − | 5 |
276303 200000 | x | = | 5471 50 |
| x | = | 5471 50 | ÷ | 276303 200000 |
| = | 5471 50 | × | 200000 276303 |
| = | 5471 | × | 4000 276303 |
| x | = | 21884000 276303 |
| x | = | 79.202904 |