X | − | X | ÷ | 103 100 | × | 3 100 | − | X | ÷ | 103 100 | × | 3 100 | × | 7 100 | × | 50 100 | − | ( | X | ÷ | 103 100 | × | 80 100 | × | 30 100 | − | 2000 | ) | = | 30000 |
方程左边 = | X | − | X | × | 3 103 | − | X | × | 21 20600 | − | ( | X | ÷ | 103 100 | × | 80 100 | × | 30 100 | − | 2000 | ) |
= | 19979 20600 | X | − | ( | X | ÷ | 103 100 | × | 80 100 | × | 30 100 | − | 2000 | ) |
19979 20600 | X | − | ( | X | ÷ | 103 100 | × | 80 100 | × | 30 100 | − | 2000 | ) | = | 30000 |
方程左边 = | 19979 20600 | X | − | X | ÷ | 103 100 | × | 80 100 | × | 30 100 | + | 2000 |
= | 19979 20600 | X | − | X | × | 24 103 | + | 2000 |
= | 15179 20600 | X | + | 2000 |
15179 20600 | X | + | 2000 | = | 30000 |
15179 20600 | X | = | 30000 | − | 2000 |
15179 20600 | X | = | 28000 |
X | = | 28000 | ÷ | 15179 20600 |
= | 28000 | × | 20600 15179 |
X | = | 576800000 15179 |
X | = | 37999.868239 |