X | + | ( | X | × | 5 100 | ) | + | ( | X | + | X | × | 5 100 | ) | = | 4483800 |
方程左边 = | X | + | X | × | 5 100 | + | ( | X | + | X | × | 5 100 | ) |
= | 21 20 | X | + | ( | X | + | X | × | 5 100 | ) |
= | 21 20 | X | + | X | + | X | × | 5 100 |
= | 21 10 | X |
21 10 | X | = | 4483800 |
X | = | 4483800 | ÷ | 21 10 |
= | 4483800 | × | 10 21 |
= | 1494600 | × | 10 7 |
X | = | 14946000 7 |
X | = | 2135142.857143 |