| 700 | ( | 1 | + | 2 | m | ) | + | 2100 | ( | 1 | + | m | ) | + | 700 | × | 11 | ( | 1 | + | 2 | m | ) | + | 2100 | ( | 1 | + | m | ) | ( | 1 | + | 2 | m | ) | × | 11 | = | 21700 | × | 15 8 |
| Left side of the equation = | 700 | ( | 1 | + | 2 | m | ) | + | 2100 | ( | 1 | + | m | ) | + | 7700 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | m | ) | ( | 1 | + | 2 | m | ) |
| 700 | ( | 1 | + | 2 | m | ) | + | 2100 | ( | 1 | + | m | ) | + | 7700 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | m | ) | ( | 1 | + | 2 | m | ) | = | 21700 | × | 15 8 |
| Left side of the equation = | 700 | × | 1 | + | 700 | × | 2 | m | + | 2100 | ( | 1 | + | m | ) | + | 7700 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | m | ) | ( | 1 | + | 2 | m | ) |
| = | 700 | + | 1400 | m | + | 2100 | ( | 1 | + | m | ) | + | 7700 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | m | ) | ( | 1 | + | 2 | m | ) |
| = | 700 | + | 1400 | m | + | 2100 | × | 1 | + | 2100 | m | + | 7700 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | m | ) | ( | 1 | + | 2 | m | ) |
| = | 700 | + | 1400 | m | + | 2100 | + | 2100 | m | + | 7700 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | m | ) | ( | 1 | + | 2 | m | ) |
| = | 2800 | + | 3500 | m | + | 7700 | ( | 1 | + | 2 | m | ) | + | 23100 | ( | 1 | + | m | ) | ( | 1 | + | 2 | m | ) |
| = | 2800 | + | 3500 | m | + | 7700 | × | 1 | + | 7700 | × | 2 | m | + | 23100 | ( | 1 | + | m | ) | ( | 1 | + | 2 | m | ) |
| = | 2800 | + | 3500 | m | + | 7700 | + | 15400 | m | + | 23100 | ( | 1 | + | m | ) | ( | 1 | + | 2 | m | ) |
| = | 10500 | + | 18900 | m | + | 23100 | ( | 1 | + | m | ) | ( | 1 | + | 2 | m | ) |
| = | 10500 | + | 18900 | m | + | 23100 | × | 1 | ( | 1 | + | 2 | m | ) | + | 23100 | m | ( | 1 | + | 2 | m | ) |
| = | 10500 | + | 18900 | m | + | 23100 | ( | 1 | + | 2 | m | ) | + | 23100 | m | ( | 1 | + | 2 | m | ) |
| = | 10500 | + | 18900 | m | + | 23100 | × | 1 | + | 23100 | × | 2 | m | + | 23100 | m | ( | 1 | + | 2 | m | ) |
| = | 10500 | + | 18900 | m | + | 23100 | + | 46200 | m | + | 23100 | m | ( | 1 | + | 2 | m | ) |
| = | 33600 | + | 65100 | m | + | 23100 | m | ( | 1 | + | 2 | m | ) |
| = | 33600 | + | 65100 | m | + | 23100 | m | × | 1 | + | 23100 | m | × | 2 | m |
| = | 33600 | + | 65100 | m | + | 23100 | m | + | 46200 | m | m |
| = | 33600 | + | 88200 | m | + | 46200 | m | m |
| 33600 | + | 88200 | m | + | 46200 | m | m | = | 21700 | × | 15 8 |
| Right side of the equation = | 81375 2 |
| 33600 | + | 88200 | m | + | 46200 | m | m | = | 81375 2 |