| ( | 200 | − | 5 | a | ) | ( | 32 | + | a | − | 24 | ) | = | 2035 |
| 方程左边 = | 200 | ( | 32 | + | a | − | 24 | ) | − | 5 | a | ( | 32 | + | a | − | 24 | ) |
| = | 200 | × | 32 | + | 200 | a | − | 200 | × | 24 | − | 5 | a | ( | 32 | + | a | − | 24 | ) |
| = | 6400 | + | 200 | a | − | 4800 | − | 5 | a | ( | 32 | + | a | − | 24 | ) |
| = | 1600 | + | 200 | a | − | 5 | a | ( | 32 | + | a | − | 24 | ) |
| = | 1600 | + | 200 | a | − | 5 | a | × | 32 | − | 5 | a | a | + | 5 | a | × | 24 |
| = | 1600 | + | 200 | a | − | 160 | a | − | 5 | a | a | + | 120 | a |
| = | 1600 | + | 160 | a | − | 5 | a | a |
| 1600 | + | 160 | a | − | 5 | a | a | = | 2035 |