0.6X:(0.4X+12)=1:2 怎么解快快快快快快快快快快快快快快快快快快?

2025-04-19 14:22:21
推荐回答(2个)
回答1:

0.6X:(0.4X+12)=1:2
0.6x*2=(0.4x+12)*1 (内项积=外项积)
1.2x=0.4x+12
0.8x=12
x=15

回答2:

0.6X:(0.4X+12)=1:2
解:1.2x=0.4x+12
0.8x=12
x=15