一題中一數學題
回答 (6)
2007-11-30 7:57 am
(-6-x)/8=2x
-6-x=16x
-6=17x
x=-6/17x
即是負6over17(負整個份數)
-6-x=16x
-6=17x
x=-6/17x
即是負6over17(負整個份數)
2007-11-30 1:20 am
第一個回答是錯的，將-6當成了6。
正確答案:
設某數是x，
(-6-x)/8 = 2x
-6-x = 16x
-6 = 17x
x= - (6/17)
某數是- (6/17)
驗算:
[-6- - (6/17)] /8 = - 2(6/17)
- (96/17) /8 = -12/17
-12/17= -12/17
正確答案:
設某數是x，
(-6-x)/8 = 2x
-6-x = 16x
-6 = 17x
x= - (6/17)
某數是- (6/17)
驗算:
[-6- - (6/17)] /8 = - 2(6/17)
- (96/17) /8 = -12/17
-12/17= -12/17
參考: 自己計的
2007-11-29 7:53 pm
-6-x
-------=2x
8
-6-x=2x *8
-6-x=16x
-6=16x+x
-6=17x
-( 6/17 ) = x
個數唔一定要除得到你試下代入去
就算真係要除 就= 0.3529411764 <==time2 = 0.705882359411
你自己咁下計數機
有好多數都唔係一定可以除唔盡
如果唔係就唔會有份數lee樣野喇
-------=2x
8
-6-x=2x *8
-6-x=16x
-6=16x+x
-6=17x
-( 6/17 ) = x
個數唔一定要除得到你試下代入去
就算真係要除 就= 0.3529411764 <==time2 = 0.705882359411
你自己咁下計數機
有好多數都唔係一定可以除唔盡
如果唔係就唔會有份數lee樣野喇
2007-11-29 7:15 pm
The answer must be -6/17
2007-11-29 7:10 pm
設某數是x，
(-6-x)/8=2x
-6-x=16x
x=-(6/17)
(-6-x)/8=2x
-6-x=16x
x=-(6/17)
2007-11-29 7:09 pm
(-6-x)/8=2x
-6-x=16x
-17x=6
x=-6/17
-6-x=16x
-17x=6
x=-6/17
收錄日期: 2021-04-13 14:36:10
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https://hk.answers.yahoo.com/question/index?qid=20071129000051KK00734