961 25 | + | 2919 25 | + | 13751 50 | = | 1661 50 | + | 6179 100 | + | 18183 100 | + | x | ( | 3717 50 | + | 1307 100 | x | ) |
方程左边 = | 21511 50 |
21511 50 | = | 1661 50 | + | 6179 100 | + | 18183 100 | + | x | ( | 3717 50 | + | 1307 100 | x | ) |
方程右边 = | 6921 25 | + | x | ( | 3717 50 | + | 1307 100 | x | ) |
21511 50 | = | 6921 25 | + | x | ( | 3717 50 | + | 1307 100 | x | ) |
方程右边 = | 6921 25 | + | x | × | 3717 50 | + | x | × | 1307 100 | x |
21511 50 | = | 6921 25 | + | 3717 50 | x | + | x | × | 1307 100 | x |