13 10 | x | + | 8 | x | + | 4 | ( | x | ÷ | 12 | ) | = | 1850201 100 |
| Left side of the equation = | 93 10 | x | + | 4 | ( | x | ÷ | 12 | ) |
93 10 | x | + | 4 | ( | x | ÷ | 12 | ) | = | 1850201 100 |
| Left side of the equation = | 93 10 | x | + | 4 | x | ÷ | 12 |
| = | 93 10 | x | + | 1 3 | x |
| = | 289 30 | x |
289 30 | x | = | 1850201 100 |
| x | = | 1850201 100 | ÷ | 289 30 |
| = | 1850201 100 | × | 30 289 |
| = | 1850201 10 | × | 3 289 |
| x | = | 5550603 2890 |
| x | = | 1920.623875 |