4(2y-5)+6=3y-11+2y
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4(2y-5)+6=3y-11+2y
4(2y-5)+6=3y-11+2y
4(2y-5)+6=3y-11+2y
一元一次方程式
2008-03-27 12:34 am
回答 (6)
2008-03-27 12:44 am
✔ 最佳答案
4(2y-5)+6=3y-11+2y左面先張4乘入(2y-5) , 右邊 將2y同3y加埋等於5y
即係
8y-20+6=5y-11
之後將未之數放係左 , 數字放加 , 記得要將正負號倒置
即係
8y-5y=-11+20-6
之後再相減
即係
3y=3
最後再除3
所以 y = 1
參考: me
2008-03-27 1:44 am
4(2y-5)+6=3y-11+2y
8y-20+6=3y+2y-11
8y-14=5y-11
8y-5y=(-11)+14
3y=3
y=1
8y-20+6=3y+2y-11
8y-14=5y-11
8y-5y=(-11)+14
3y=3
y=1
2008-03-27 1:08 am
4(2y-5)+6=3y-11+2y
8y-20+6=5y-11
8y-5y-20+6=-11
3y=20-6-11
3y=3
y=3/3
y=1
8y-20+6=5y-11
8y-5y-20+6=-11
3y=20-6-11
3y=3
y=3/3
y=1
參考: ME
2008-03-27 12:42 am
4(2y-5)+6=3y-11+2y
4(2y-5)=5y-17
6y-20=5y-17
6y-5y=20-17
y=3
ans:y=3
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
easy job~
4(2y-5)=5y-17
6y-20=5y-17
6y-5y=20-17
y=3
ans:y=3
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
easy job~
參考: vicky
2008-03-27 12:38 am
4(2y-5)+6=3y-11+2y
4X2y-4X5+6=3y-11+2y
8y-20+6=5y-11
8y-5y-20+6=-11
3y=20-6-11
3y=3
y=3/3
y=1
4X2y-4X5+6=3y-11+2y
8y-20+6=5y-11
8y-5y-20+6=-11
3y=20-6-11
3y=3
y=3/3
y=1
2008-03-27 12:36 am
一元一次方程式
4(2y-5)+6=3y-11+2y
8y-20+6 = 5y-11
8y-5y = -11+14
3y=3
y=1
4(2y-5)+6=3y-11+2y
8y-20+6 = 5y-11
8y-5y = -11+14
3y=3
y=1
收錄日期: 2021-04-13 15:20:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080326000051KK02311