| ( | 197 10 | + | H | ) | ( | 25 2 | + | H | ) | H | = | 3322 25 |
| 方程左边 = | 197 10 | ( | 25 2 | + | H | ) | H | + | H | ( | 25 2 | + | H | ) | H |
| = | 197 10 | × | 25 2 | H | + | 197 10 | H | H | + | H | ( | 25 2 | + | H | ) | H |
| = | 985 4 | H | + | 197 10 | H | H | + | H | ( | 25 2 | + | H | ) | H |
| = | 985 4 | H | + | 197 10 | H | H | + | H | × | 25 2 | H | + | H | H | H |
985 4 | H | + | 197 10 | H | H | + | H | × | 25 2 | H | + | H | H | H | = | 3322 25 |