17 20 | x | + | ( | 17 20 | x | − | 35 2 | ) | ÷ | ( | 105 4 | − | 41 4 | x | ) | × | ( | 100 | − | x | ) | = | 75 |
| 方程两边同时乘以: | ( | 105 4 | − | 41 4 | x | ) |
17 20 | x | ( | 105 4 | − | 41 4 | x | ) | + | ( | 17 20 | x | − | 35 2 | ) | ( | 100 | − | x | ) | = | 75 | ( | 105 4 | − | 41 4 | x | ) |
17 20 | x | × | 105 4 | − | 17 20 | x | × | 41 4 | x | + | ( | 17 20 | x | − | 35 2 | ) | ( | 100 | − | x | ) | = | 75 | ( | 105 4 | − | 41 4 | x | ) |
17 20 | x | × | 105 4 | − | 17 20 | x | × | 41 4 | x | + | ( | 17 20 | x | − | 35 2 | ) | ( | 100 | − | x | ) | = | 75 | × | 105 4 | − | 75 | × | 41 4 | x |
357 16 | x | − | 697 80 | x | x | + | ( | 17 20 | x | − | 35 2 | ) | ( | 100 | − | x | ) | = | 7875 4 | − | 3075 4 | x |
357 16 | x | − | 697 80 | x | x | + | 17 20 | x | ( | 100 | − | x | ) | − | 35 2 | ( | 100 | − | x | ) | = | 7875 4 | − | 3075 4 | x |
357 16 | x | − | 697 80 | x | x | + | 17 20 | x | × | 100 | − | 17 20 | x | x | − | 35 2 | = | 7875 4 | − | 3075 4 | x |
357 16 | x | − | 697 80 | x | x | + | 85 | x | − | 17 20 | x | x | − | 35 2 | ( | 100 | − | x | ) | = | 7875 4 | − | 3075 4 | x |
1717 16 | x | − | 697 80 | x | x | − | 17 20 | x | x | − | 35 2 | ( | 100 | − | x | ) | = | 7875 4 | − | 3075 4 | x |
1717 16 | x | − | 697 80 | x | x | − | 17 20 | x | x | − | 35 2 | × | 100 | + | 35 2 | x | = | 7875 4 | − | 3075 4 | x |
1717 16 | x | − | 697 80 | x | x | − | 17 20 | x | x | − | 1750 | + | 35 2 | x | = | 7875 4 | − | 3075 4 | x |
1997 16 | x | − | 697 80 | x | x | − | 17 20 | x | x | − | 1750 | = | 7875 4 | − | 3075 4 | x |