1 100 | = | ( | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | ) | ÷ | ( | 1 | − | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | ) |
方程两边同时乘以: | ( | 1 | − | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | ) |
1 100 | ( | 1 | − | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | ) | = | ( | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | ) |
1 100 | × | 1 | − | 1 100 | × | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | = | ( | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | ) |
1 100 | × | 1 | − | 1 100 | × | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | = | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) |
1 100 | − | 1 1250 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) | = | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) |
1 100 | − | 1 1250 | × | 1 | ÷ | 11 20 | × | ( | 1 | − | X | ) | = | 2 25 | ( | 1 | ÷ | 11 20 | ) | ( | 1 | − | X | ) |
1 100 | − | 1 1250 | × | 1 | ÷ | 11 20 | × | ( | 1 | − | X | ) | = | 2 25 | × | 1 | ÷ | 11 20 | × | ( | 1 | − | X | ) |
1 100 | − | 2 1375 | ( | 1 | − | X | ) | = | 8 55 | ( | 1 | − | X | ) |
1 100 | − | 2 1375 | × | 1 | + | 2 1375 | X | = | 8 55 | ( | 1 | − | X | ) |
1 100 | − | 2 1375 | × | 1 | + | 2 1375 | X | = | 8 55 | × | 1 | − | 8 55 | X |
1 100 | − | 2 1375 | + | 2 1375 | X | = | 8 55 | − | 8 55 | X |
47 5500 | + | 2 1375 | X | = | 8 55 | − | 8 55 | X |
2 1375 | X | + | 8 55 | X | = | 8 55 | − | 47 5500 |
202 1375 | X | = | 8 55 | − | 47 5500 |
202 1375 | X | = | 753 5500 |
X | = | 753 5500 | ÷ | 202 1375 |
= | 753 5500 | × | 1375 202 |
= | 753 4 | × | 1 202 |
X | = | 753 808 |
X | = | 0.931931 |