( | ( | 1 | + | X | ) | ÷ | X | ) | × | 315 100 | = | 121 200 |
( | 1 | + | X | ) | ÷ | X | × | 315 100 | = | 121 200 |
方程两边同时乘以: | X |
( | 1 | + | X | ) | × | 315 100 | = | 121 200 | X |
1 | × | 315 100 | + | X | × | 315 100 | = | 121 200 | X |
63 20 | + | X | × | 315 100 | = | 121 200 | X |
315 100 | X | − | 121 200 | X | = | - | 63 20 |
509 200 | X | = | - | 63 20 |
X | = | - | 63 20 | ÷ | 509 200 |
= | - | 63 20 | × | 200 509 |
= | - | 63 | × | 10 509 |
X | = | - | 630 509 |
X | = | - 1.237721 |