12 100 | = | x | ( | 1 | + | 37 1000 | ) | ÷ | 10 | + | 37 1000 |
| Right side of the equation = | x | × | 1 | × | 1 10 | + | x | × | 37 1000 | × | 1 10 | + | 37 1000 |
| = | x | × | 1 10 | + | x | × | 37 10000 | + | 37 1000 |
| = | 1037 10000 | x | + | 37 1000 |
12 100 | = | 1037 10000 | x | + | 37 1000 |
| - | 1037 10000 | x | = | 37 1000 | − | 12 100 |
| - | 1037 10000 | x | = | - | 83 1000 |
83 1000 | = | 1037 10000 | x |
1037 10000 | x | = | 83 1000 |
| x | = | 83 1000 | ÷ | 1037 10000 |
| = | 83 1000 | × | 10000 1037 |
| = | 83 | × | 10 1037 |
| x | = | 830 1037 |
| x | = | 0.800386 |