| ( | x | + | x | × | 80 100 | ) | + | ( | x | + | x | × | 80 100 | ) | + | ( | ( | x | + | x | × | 80 100 | ) | + | ( | x | + | x | × | 80 100 | ) | × | 80 100 | ) | + | 15000 | = | 73000 |
| Left side of the equation = | x | + | x | × | 80 100 | + | ( | x | + | x | × | 80 100 | ) | + | ( | ( | x | + | x | × | 80 100 | ) | + | ( | x | + | x | × | 80 100 | ) | × | 80 100 | ) | + | 15000 |
| = | 9 5 | x | + | ( | x | + | x | × | 80 100 | ) | + | ( | ( | x | + | x | × | 80 100 | ) | + | ( | x | + | x | × | 80 100 | ) | × | 80 100 | ) | + | 15000 |
| = | 9 5 | x | + | x | + | x | × | 80 100 | + | ( | ( | x | + | x | × | 80 100 | ) | + | ( | x | + | x | × | 80 100 | ) | × | 80 100 | ) | + | 15000 |
| = | 18 5 | x | + | ( | ( | x | + | x | × | 80 100 | ) | + | ( | x | + | x | × | 80 100 | ) | × | 80 100 | ) | + | 15000 |
| = | 18 5 | x | + | ( | x | + | x | × | 80 100 | ) | + | ( | x | + | x | × | 80 100 | ) | × | 80 100 | + | 15000 |
| = | 18 5 | x | + | x | + | x | × | 80 100 | + | ( | x | + | x | × | 80 100 | ) | × | 80 100 | + | 15000 |
| = | 27 5 | x | + | ( | x | + | x | × | 80 100 | ) | × | 80 100 | + | 15000 |
| = | 27 5 | x | + | x | × | 80 100 | + | x | × | 80 100 | × | 80 100 | + | 15000 |
| = | 27 5 | x | + | x | × | 80 100 | + | x | × | 16 25 | + | 15000 |
| = | 171 25 | x | + | 15000 |
171 25 | x | + | 15000 | = | 73000 |
171 25 | x | = | 73000 | − | 15000 |
171 25 | x | = | 58000 |
| x | = | 58000 | ÷ | 171 25 |
| = | 58000 | × | 25 171 |
| x | = | 1450000 171 |
| x | = | 8479.532164 |