The result of adding 10 to a number and then multiplying it by 7 is equal to the result of multiplying the number by 12 and adding 2 to it. Findthe number.
更新1:
Thx~ 但我睇個過正確答案係8.
更新2:
我無睇錯question或answer ,, 不過都唔該哂..,,
唔該幫我解題及列式，急！
2007-08-30 8:33 am
唔該解題及列式
The result of adding 10 to a number and then multiplying it by 7 is equal to the result of multiplying the number by 12 and adding 2 to it. Findthe number.
The result of adding 10 to a number and then multiplying it by 7 is equal to the result of multiplying the number by 12 and adding 2 to it. Findthe number.
回答 (1)
2007-08-30 8:39 am
✔ 最佳答案
7(a+10)= 12a+27a+70= 12a+2
7a+68= 12a
12a-7a= 68
5a= 68
a= 13.6//
參考: 應該correct ge
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