Mathematics
1+3a=7
a=?
1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?1+3a=7
a=?
回答 (3)
✔ 最佳答案
1 + 3a = 7
3a = 7 - 1
3a = 6
3a/3 = 6/3
a = 2
參考: by myself
Change to 3a+1=7 will be easier
3a+1=7
3a+1-1=7-1
3a=6
3a/3=6/3
a=2
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^.^Hope I can help you^_^
1+3a=7=7-1-3a
1+3a=7
a=2 as 3xa+1 equal 7 you can think like this:7-1-3a
收錄日期: 2021-04-13 15:23:25
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