2.4x-x=42÷1.5怎么解?

2025-05-09 04:03:36
推荐回答(3个)
回答1:

2.4x-x=42÷1.5
解:1.4X=28
X=28÷1.4
X=20

回答2:

2.4x-x=42X2/3(1.5=3/2)
2.4x-x=28
1.4x=28
7/2 x=28
x=28x2/7=8

回答3:

1.4x=2.8
x=2