2.3(2x+1)-2(x-1)=13
3.(3x+2) 1 x
______=__-__
3 6 2
更新1:
請列步驟.thx
MATHS
2006-12-26 6:18 am
1.4(2a-1)-2(3a+1)=6
2.3(2x+1)-2(x-1)=13
3.(3x+2) 1 x
______=__-__
3 6 2
2.3(2x+1)-2(x-1)=13
3.(3x+2) 1 x
______=__-__
3 6 2
回答 (3)
2006-12-26 6:36 am
✔ 最佳答案
1.4(2a-1)-2(3a+1)=64(2a-1)-2(3a+1)=6
8a – 4 – 6a – 2 = 6
2a = 12
a = 6
2.3(2x+1)-2(x-1)=13
6x + 3 – 2x + 2 = 13
4x = 8
x = 2
3.
(3x+2) 1 x
───=─ - ─
3 6 2
將全式乘6
2(3x+2) = 1 – 3x
6x + 4 = 1 – 3x
9x = -3
x = -1/3
2006-12-26 6:22 am
1.4(2a-1)-2(3a+1)=6
8a-4-6a-2=6
2a=12
a=6
2.3(2x+1)-2(x-1)=13
6x+3-2x+2=13
4x=8
x=2
希望可以幫到你!!!
如果想多謝我就@我啦!!!
MSN:[email protected]
8a-4-6a-2=6
2a=12
a=6
2.3(2x+1)-2(x-1)=13
6x+3-2x+2=13
4x=8
x=2
希望可以幫到你!!!
如果想多謝我就@我啦!!!
MSN:[email protected]
2006-12-26 6:22 am
1. 4(2a-1) - 2(3a+1)=6
8a -4 -6a -2 = 6
2a = 12
a = 6
2. 3(2x+1) -2(x-1) = 13
6x +3 -2x + 2 = 13
4x = 8
x = 2
第3題,唔明你問緊咩??
8a -4 -6a -2 = 6
2a = 12
a = 6
2. 3(2x+1) -2(x-1) = 13
6x +3 -2x + 2 = 13
4x = 8
x = 2
第3題,唔明你問緊咩??
收錄日期: 2021-04-18 19:56:20
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