1 10 | = | ( | 2 25 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) | ) | ÷ | ( | 1 | − | 2 25 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) | ) |
方程两边同时乘以: | ( | 1 | − | 2 25 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) | ) |
1 10 | ( | 1 | − | 2 25 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) | ) | = | ( | 2 25 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) | ) |
1 10 | × | 1 | − | 1 10 | × | 2 25 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) | = | ( | 2 25 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) | ) |
1 10 | × | 1 | − | 1 10 | × | 2 25 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) | = | 2 25 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) |
1 10 | − | 1 125 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) | = | 2 25 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) |
1 10 | − | 1 125 | × | 1 | ÷ | 7 10 | × | ( | 1 | − | X | ) | + | 1 125 | × | 3 20 | ( | 1 | − | X | ) | = | 2 25 | ( | 1 | ÷ | 7 10 | − | 3 20 | ) | ( | 1 | − | X | ) |
1 10 | − | 1 125 | × | 1 | ÷ | 7 10 | × | ( | 1 | − | X | ) | + | 1 125 | × | 3 20 | ( | 1 | − | X | ) | = | 2 25 | × | 1 | ÷ | 7 10 | × | ( | 1 | − | X | ) | − | 2 25 | × | 3 20 | ( | 1 | − | X | ) |
1 10 | − | 2 175 | ( | 1 | − | X | ) | + | 3 2500 | ( | 1 | − | X | ) | = | 4 35 | ( | 1 | − | X | ) | − | 3 250 | ( | 1 | − | X | ) |
1 10 | − | 2 175 | × | 1 | + | 2 175 | X | + | 3 2500 | ( | 1 | − | X | ) | = | 4 35 | ( | 1 | − | X | ) | − | 3 250 | ( | 1 | − | X | ) |
1 10 | − | 2 175 | × | 1 | + | 2 175 | X | + | 3 2500 | ( | 1 | − | X | ) | = | 4 35 | × | 1 | − | 4 35 | X | − | 3 250 | ( | 1 | − | X | ) |
1 10 | − | 2 175 | + | 2 175 | X | + | 3 2500 | ( | 1 | − | X | ) | = | 4 35 | − | 4 35 | X | − | 3 250 | ( | 1 | − | X | ) |
31 350 | + | 2 175 | X | + | 3 2500 | ( | 1 | − | X | ) | = | 4 35 | − | 4 35 | X | − | 3 250 | ( | 1 | − | X | ) |
31 350 | + | 2 175 | X | + | 3 2500 | × | 1 | − | 3 2500 | X | = | 4 35 | − | 4 35 | X | − | 3 250 | ( | 1 | − | X | ) |
31 350 | + | 2 175 | X | + | 3 2500 | × | 1 | − | 3 2500 | X | = | 4 35 | − | 4 35 | X | − | 3 250 | × | 1 | + | 3 250 | X |
31 350 | + | 2 175 | X | + | 3 2500 | − | 3 2500 | X | = | 4 35 | − | 4 35 | X | − | 3 250 | + | 3 250 | X |
1571 17500 | + | 179 17500 | X | = | 179 1750 | − | 179 1750 | X |
179 17500 | X | + | 179 1750 | X | = | 179 1750 | − | 1571 17500 |
1969 17500 | X | = | 179 1750 | − | 1571 17500 |
1969 17500 | X | = | 219 17500 |
X | = | 219 17500 | ÷ | 1969 17500 |
= | 219 17500 | × | 17500 1969 |
= | 219 | × | 1 1969 |
X | = | 219 1969 |
X | = | 0.111224 |