X | ÷ | 87 | − | 20 | ÷ | 1900 | − | 20 | ÷ | 167 | = | 167 100000 | ( | X | + | 40 | ) |
方程左边 = | X | × | 1 87 | − | 1 95 | − | 20 167 |
= | 1 87 | X | − | 2067 15865 |
1 87 | X | − | 2067 15865 | = | 167 100000 | ( | X | + | 40 | ) |
方程右边 = | 167 100000 | X | + | 167 100000 | × | 40 |
= | 167 100000 | X | + | 167 2500 |
1 87 | X | − | 2067 15865 | = | 167 100000 | X | + | 167 2500 |
1 87 | X | − | 167 100000 | X | = | 167 2500 | + | 2067 15865 |
85471 8700000 | X | = | 167 2500 | + | 2067 15865 |
85471 8700000 | X | = | 1563391 7932500 |
X | = | 1563391 7932500 | ÷ | 85471 8700000 |
= | 1563391 7932500 | × | 8700000 85471 |
= | 1563391 3173 | × | 3480 85471 |
X | = | 5440600680 271199483 |
X | = | 20.06125 |