| ( | 819 20 | ( | 1 | + | 15 100 | ) | ) | + | ( | 7 100 | x | ) | = | x |
| Left side of the equation = | 819 20 | ( | 1 | + | 15 100 | ) | + | ( | 7 100 | x | ) |
| = | 819 20 | × | 1 | + | 819 20 | × | 15 100 | + | ( | 7 100 | x | ) |
| = | 819 20 | + | 2457 400 | + | ( | 7 100 | x | ) |
| = | 18837 400 | + | ( | 7 100 | x | ) |
| = | 18837 400 | + | 7 100 | x |
18837 400 | + | 7 100 | x | = | x |
7 100 | x | − | x | = | - | 18837 400 |
| - | 93 100 | x | = | - | 18837 400 |
18837 400 | = | 93 100 | x |
93 100 | x | = | 18837 400 |
| x | = | 18837 400 | ÷ | 93 100 |
| = | 18837 400 | × | 100 93 |
| = | 6279 4 | × | 1 31 |
| x | = | 6279 124 |
| x | = | 50.637097 |