X | ÷ | 87 | − | 20 | ÷ | 1900 | − | 18 | ÷ | 167 | = | 167 100000 | ( | X | + | 38 | ) |
方程左边 = | X | × | 1 87 | − | 1 95 | − | 18 167 |
= | 1 87 | X | − | 1877 15865 |
1 87 | X | − | 1877 15865 | = | 167 100000 | ( | X | + | 38 | ) |
方程右边 = | 167 100000 | X | + | 167 100000 | × | 38 |
= | 167 100000 | X | + | 3173 50000 |
1 87 | X | − | 1877 15865 | = | 167 100000 | X | + | 3173 50000 |
1 87 | X | − | 167 100000 | X | = | 3173 50000 | + | 1877 15865 |
85471 8700000 | X | = | 3173 50000 | + | 1877 15865 |
85471 8700000 | X | = | 28837929 158650000 |
X | = | 28837929 158650000 | ÷ | 85471 8700000 |
= | 28837929 158650000 | × | 8700000 85471 |
= | 28837929 3173 | × | 174 85471 |
X | = | 5017799646 271199483 |
X | = | 18.502246 |