0 | = | ( | 70 100 | − | 15 100 | ) | − | 11 1000 | ÷ | 10 100 | × | 8 100 | ( | 1 | − | X | ) |
方程右边 = | ( | 70 100 | − | 15 100 | ) | − | 11 1250 | ( | 1 | − | X | ) |
0 | = | ( | 70 100 | − | 15 100 | ) | − | 11 1250 | ( | 1 | − | X | ) |
方程右边 = | 70 100 | − | 15 100 | − | 11 1250 | ( | 1 | − | X | ) |
= | 11 20 | − | 11 1250 | ( | 1 | − | X | ) |
= | 11 20 | − | 11 1250 | × | 1 | + | 11 1250 | X |
= | 11 20 | − | 11 1250 | + | 11 1250 | X |
= | 1353 2500 | + | 11 1250 | X |
0 | = | 1353 2500 | + | 11 1250 | X |
- | 11 1250 | X | = | 1353 2500 | − | 0 |
- | 11 1250 | X | = | 1353 2500 |
- | 1353 2500 | = | 11 1250 | X |
11 1250 | X | = | - | 1353 2500 |
X | = | - | 1353 2500 | ÷ | 11 1250 |
= | - | 1353 2500 | × | 1250 11 |
= | - | 123 2 | × | 1 |
X | = | - | 123 2 |
X | = | - 61.5 |