( | 105 | + | X | ) | ÷ | ( | 177 | + | X | ) | = | 309 500 |
方程两边同时乘以: | ( | 177 | + | X | ) |
( | 105 | + | X | ) | = | 309 500 | ( | 177 | + | X | ) |
105 | + | X | = | 309 500 | ( | 177 | + | X | ) |
105 | + | X | = | 309 500 | × | 177 | + | 309 500 | X |
105 | + | X | = | 54693 500 | + | 309 500 | X |
X | − | 309 500 | X | = | 54693 500 | − | 105 |
191 500 | X | = | 54693 500 | − | 105 |
191 500 | X | = | 2193 500 |
X | = | 2193 500 | ÷ | 191 500 |
= | 2193 500 | × | 500 191 |
= | 2193 | × | 1 191 |
X | = | 2193 191 |
X | = | 11.481675 |