3.5x一6x2.8=4.2如何解答?

3.5x一6x2.8=4.2如何解答?
2025-06-29 07:10:14
推荐回答(1个)
回答1:

3.5x一6x2.8=4.2
3.5x一16.8=4.2
3.5x=4.2十16.8
3.5x=21
x=21÷3.5
X=6