( | X | − | X | ÷ | 113 100 | × | 13 100 | ) | ÷ | 729 100 | = | 159 500 |
方程左边 = | X | × | 100 729 | − | X | ÷ | 113 100 | × | 13 100 | × | 100 729 |
= | X | × | 100 729 | − | X | × | 1300 82377 |
= | 10000 82377 | X |
10000 82377 | X | = | 159 500 |
X | = | 159 500 | ÷ | 10000 82377 |
= | 159 500 | × | 82377 10000 |
X | = | 13097943 5000000 |
X | = | 2.619589 |