x-6=x-3/4
(其實係4分之x-3)
代數....f.1
2007-10-30 12:29 am
回答 (4)
2007-10-30 1:16 am
x-6 = x-3/4
x*4-6*4= x-3/4*4
4x-24 = x-3
4x-24+3 = x-3+3
4x-21+21 = x-x+21
3x =21
x =7
x*4-6*4= x-3/4*4
4x-24 = x-3
4x-24+3 = x-3+3
4x-21+21 = x-x+21
3x =21
x =7
2007-10-30 12:59 am
4(X - 6)=X - 3
4X - 24 =X - 3
4X - X =24 - 3
3X = 21
X = 4
2007-10-29 19:06:23 補充：
正確答案係X=7至o岩。
4X - 24 =X - 3
4X - X =24 - 3
3X = 21
X = 4
2007-10-29 19:06:23 補充：
正確答案係X=7至o岩。
參考: 自己
2007-10-30 12:51 am
x-6=(x-3)/4
4*(x-6)=(x-3)/4*4 (兩邊乘四)
4x-4*6=x-3
4x-24=x-3
4x-24+3=x-3+3
4x-21=x
4x-x=21 (兩邊淢四)
3x=21
3x/3=21/3
x=7
答案是x=7。
4*(x-6)=(x-3)/4*4 (兩邊乘四)
4x-4*6=x-3
4x-24=x-3
4x-24+3=x-3+3
4x-21=x
4x-x=21 (兩邊淢四)
3x=21
3x/3=21/3
x=7
答案是x=7。
參考: Myself
收錄日期: 2021-04-23 19:32:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071029000051KK01908