10 | ÷ | ( | 1 | + | X | ÷ | 12 | × | 3 | ) | + | 25 | ÷ | ( | 1 | + | X | ) | = | 15 |
方程两边同时乘以: | ( | 1 | + | X | ÷ | 12 | × | 3 | ) |
10 | + | 25 | ÷ | ( | 1 | + | X | ) | × | ( | 1 | + | X | ÷ | 12 | × | 3 | ) | = | 15 | ( | 1 | + | X | ÷ | 12 | × | 3 | ) |
10 | + | 25 | ÷ | ( | 1 | + | X | ) | × | 1 | + | 25 | ÷ | ( | 1 | + | X | ) | × | X | ÷ | 12 | × | 3 | = | 15 | ( | 1 | + | X | ÷ | 12 | × | 3 | ) |
10 | + | 25 | ÷ | ( | 1 | + | X | ) | × | 1 | + | 25 | ÷ | ( | 1 | + | X | ) | × | X | ÷ | 12 | × | 3 | = | 15 | × | 1 | + | 15 | X | ÷ | 12 | × | 3 |
10 | + | 25 | ÷ | ( | 1 | + | X | ) | + | 25 4 | ÷ | ( | 1 | + | X | ) | × | X | = | 15 | + | 15 4 | X |
方程两边同时乘以: | ( | 1 | + | X | ) |
10 | ( | 1 | + | X | ) | + | 25 | + | 25 4 | X | = | 15 | ( | 1 | + | X | ) | + | 15 4 | X | ( | 1 | + | X | ) |
10 | × | 1 | + | 10 | X | + | 25 | + | 25 4 | X | = | 15 | ( | 1 | + | X | ) | + | 15 4 | X | ( | 1 | + | X | ) |
10 | × | 1 | + | 10 | X | + | 25 | + | 25 4 | X | = | 15 | × | 1 | + | 15 | X | + | 15 4 | X | ( | 1 | + | X | ) |
10 | + | 10 | X | + | 25 | + | 25 4 | X | = | 15 | + | 15 | X | + | 15 4 | X | ( | 1 | + | X | ) |
35 | + | 65 4 | X | = | 15 | + | 15 | X | + | 15 4 | X | ( | 1 | + | X | ) |
35 | + | 65 4 | X | = | 15 | + | 15 | X | + | 15 4 | X | × | 1 | + | 15 4 | X | X |
35 | + | 65 4 | X | = | 15 | + | 15 | X | + | 15 4 | X | + | 15 4 | X | X |
35 | + | 65 4 | X | = | 15 | + | 75 4 | X | + | 15 4 | X | X |
X1= | - | 8 3 |
X2=2 |