10 100 | = | 9 100 | ( | 1 | ÷ | 55 100 | ) | X | ÷ | ( | 1 | − | 9 100 | ( | 1 | ÷ | 55 100 | ) | X | ) |
方程两边同时乘以: | ( | 1 | − | 9 100 | ( | 1 | ÷ | 55 100 | ) | X | ) |
10 100 | ( | 1 | − | 9 100 | ( | 1 | ÷ | 55 100 | ) | X | ) | = | 9 100 | ( | 1 | ÷ | 55 100 | ) | X |
10 100 | × | 1 | − | 10 100 | × | 9 100 | ( | 1 | ÷ | 55 100 | ) | X | = | 9 100 | ( | 1 | ÷ | 55 100 | ) | X |
10 100 | × | 1 | − | 10 100 | × | 9 100 | ( | 1 | ÷ | 55 100 | ) | X | = | 9 100 | × | 1 | ÷ | 55 100 | × | X |
1 10 | − | 9 1000 | ( | 1 | ÷ | 55 100 | ) | X | = | 9 55 | X |
1 10 | − | 9 1000 | × | 1 | ÷ | 55 100 | × | X | = | 9 55 | X |
1 10 | − | 9 550 | X | = | 9 55 | X |
- | 9 550 | X | − | 9 55 | X | = | - | 1 10 |
- | 9 50 | X | = | - | 1 10 |
1 10 | = | 9 50 | X |
9 50 | X | = | 1 10 |
X | = | 1 10 | ÷ | 9 50 |
= | 1 10 | × | 50 9 |
= | 1 | × | 5 9 |
X | = | 5 9 |
X | = | 0.555556 |