why??

2006-11-26 1:37 am
2.)1/x+1/2x-1/3x=7/3
6/6x + 3/6x – 2/6x = 7/3

7/6x = 7/3

1/6x = 1/3----why will calculate this step??

3 = 6x

x = 0.5

回答 (2)

2006-11-26 2:05 am
✔ 最佳答案
I think is
7/6x=7/3
1=7/3*6x/7
1=6x/3
1/6x=1/3
6x=3
x=3/6
x=0.5
I think this equation is so short so you don't understand.
2006-11-26 2:05 am
兩邊一齊除以7
又或者可以話係兩邊一齊乘1/7~~
明唔明呀?!
參考: me


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