| x | = | 28 25 | × | 10000000 | ( | 1 20 | − | x | ) | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) |
| Right side of the equation = | 11200000 | ( | 1 20 | − | x | ) | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) |
| x | = | 11200000 | ( | 1 20 | − | x | ) | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) |
| Right side of the equation = | 11200000 | × | 1 20 | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) | − | 11200000 | x | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) |
| = | 560000 | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) | − | 11200000 | x | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) |
| = | 560000 | × | 29 10 | ( | 29 10 | − | 2 | x | ) | − | 560000 | × | 2 | x | ( | 29 10 | − | 2 | x | ) | − | 11200000 | x | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) |
| = | 1624000 | ( | 29 10 | − | 2 | x | ) | − | 1120000 | x | ( | 29 10 | − | 2 | x | ) | − | 11200000 | x | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) |
| = | 1624000 | × | 29 10 | − | 1624000 | × | 2 | x | − | 1120000 | x | ( | 29 10 | − | 2 | x | ) | − | 11200000 | x | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) |
| = | 4709600 | − | 3248000 | x | − | 1120000 | x | ( | 29 10 | − | 2 | x | ) | − | 11200000 | x | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) |
| = | 4709600 | − | 3248000 | x | − | 1120000 | x | × | 29 10 | + | 1120000 | x | × | 2 | x | − | 11200000 | x |
| = | 4709600 | − | 3248000 | x | − | 3248000 | x | + | 2240000 | x | x | − | 11200000 | x | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) |
| = | 4709600 | − | 6496000 | x | + | 2240000 | x | x | − | 11200000 | x | ( | 29 10 | − | 2 | x | ) | ( | 29 10 | − | 2 | x | ) |
| = | 4709600 | − | 6496000 | x | + | 2240000 | x | x | − | 11200000 | x | × | 29 10 | ( | 29 10 | − | 2 | x | ) | + | 11200000 | x |
| = | 4709600 | − | 6496000 | x | + | 2240000 | x | x | − | 32480000 | x | ( | 29 10 | − | 2 | x | ) | + | 22400000 | x | x |
| = | 4709600 | − | 6496000 | x | + | 2240000 | x | x | − | 32480000 | x | × | 29 10 | + | 32480000 | x | × | 2 |
| = | 4709600 | − | 6496000 | x | + | 2240000 | x | x | − | 94192000 | x | + | 64960000 | x | x | + | 22400000 |
| = | 4709600 | − | 100688000 | x | + | 2240000 | x | x | + | 64960000 | x | x | + | 22400000 | x | x |
| = | 4709600 | − | 100688000 | x | + | 2240000 | x | x | + | 64960000 | x | x | + | 22400000 | x | x |
| = | 4709600 | − | 100688000 | x | + | 2240000 | x | x | + | 64960000 | x | x | + | 64960000 | x | x |
| x | = | 4709600 | − | 100688000 | x | + | 2240000 | x | x | + | 64960000 | x | x | + | 64960000 | x | x |