( | X | − | X | ÷ | 113 100 | × | 13 100 | ) | ÷ | 727 100 | = | 319 200 |
方程左边 = | X | × | 100 727 | − | X | ÷ | 113 100 | × | 13 100 | × | 100 727 |
= | X | × | 100 727 | − | X | × | 1300 82151 |
= | 10000 82151 | X |
10000 82151 | X | = | 319 200 |
X | = | 319 200 | ÷ | 10000 82151 |
= | 319 200 | × | 82151 10000 |
X | = | 26206169 2000000 |
X | = | 13.103084 |