I want to ask following question?
回答 (2)
2008-11-06 3:21 pm
✔ 最佳答案
3 [ 3(4 - x) +1 ] = x + 11 3 [ 12 - 3x +1 ] = x + 11
3 [ 13 - 3x ] = x + 11
39 - 9x = x + 11
39 - 11 = x + 9x
28 = 10x
2.8 = x
x = 2.8 (Ans.)
Hope can help you.
2008-11-06 6:45 pm
3 [3(4 - x) +1 ]= x+11
3(12-3x+1) = x+11
3(13-3x) = x+11
39-9x = x+11
28 -9x = x
28 = 10x
x= 2.8
3(12-3x+1) = x+11
3(13-3x) = x+11
39-9x = x+11
28 -9x = x
28 = 10x
x= 2.8
參考: 會考數學拿c既人~
收錄日期: 2021-04-12 02:19:39
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