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 |
= | 31 35 | x | + | 2 7 |
31 35 | x | + | 2 7 | = | 42 125 |
31 35 | x | = | 42 125 | − | 2 7 |
31 35 | x | = | 44 875 |
x | = | 44 875 | ÷ | 31 35 |
= | 44 875 | × | 35 31 |
= | 44 25 | × | 1 31 |
x | = | 44 775 |
x | = | 0.056774 |