4.2x÷3=8.4怎样算更好

2024-11-15 23:57:32
推荐回答(3个)
回答1:

x÷3=8.4÷4.2
x÷3=2
x=2×3
x=6

回答2:

4.2x÷3=8.4
4.2x=8.4×3
4.2x=25.2
x=6

回答3:

4.2x÷3=8.4
解:4.2x=8.4×3
4.2x=25.2
x=25.2÷4.2
x=6