3 5 | x | + | 2 | ÷ | 7 | − | ( | 2 | ÷ | 7 | ) | x | = | 42 125 |
方程左边 = | 3 5 | x | + | 2 7 | − | ( | 2 | ÷ | 7 | ) | x |
3 5 | x | + | 2 7 | − | ( | 2 | ÷ | 7 | ) | x | = | 42 125 |
方程左边 = | 3 5 | x | + | 2 7 | − | 2 | ÷ | 7 | × | x |
= | 3 5 | x | + | 2 7 | − | 2 7 | x |
= | 11 35 | x | + | 2 7 |
11 35 | x | + | 2 7 | = | 42 125 |
11 35 | x | = | 42 125 | − | 2 7 |
11 35 | x | = | 44 875 |
x | = | 44 875 | ÷ | 11 35 |
= | 44 875 | × | 35 11 |
= | 4 25 | × | 1 |
x | = | 4 25 |
x | = | 0.16 |