( | 111 100 | + | X | ) | ÷ | ( | 77 20 | + | X | ) | = | 3 10 |
方程两边同时乘以: | ( | 77 20 | + | X | ) |
( | 111 100 | + | X | ) | = | 3 10 | ( | 77 20 | + | X | ) |
111 100 | + | X | = | 3 10 | ( | 77 20 | + | X | ) |
111 100 | + | X | = | 3 10 | × | 77 20 | + | 3 10 | X |
111 100 | + | X | = | 231 200 | + | 3 10 | X |
X | − | 3 10 | X | = | 231 200 | − | 111 100 |
7 10 | X | = | 231 200 | − | 111 100 |
7 10 | X | = | 9 200 |
X | = | 9 200 | ÷ | 7 10 |
= | 9 200 | × | 10 7 |
= | 9 20 | × | 1 7 |
X | = | 9 140 |
X | = | 0.064286 |