3/2r-4=r
回答 (8)
2006-11-25 8:01 pm
✔ 最佳答案
3/2r - 4 = r1.5r - 4 = r
1.5r = r + 4
1.5r - r = 4
0.5r = 4
0.5r/0.5 = 4/0.5
r = 8
Checking:
3/2( 8 ) - 4 = 8
1.5( 8 ) - 4 = 8
12 - 4 = 8
8 = 8
2006-11-28 20:36:56 補充：
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2006-11-26 1:50 am
3/2r-4=r
2r-4=3r
-4=3r-2r
-4=r
2r-4=3r
-4=3r-2r
-4=r
2006-11-25 8:01 pm
3/2r－4=r
3r－8=2r（全式ｘ２）
3r－2r=8（調位）
r=8
3r－8=2r（全式ｘ２）
3r－2r=8（調位）
r=8
2006-11-25 8:01 pm
3/2r-4=r
3/2r - r = 4
r/2=4
r = 8
3/2r - r = 4
r/2=4
r = 8
2006-11-25 8:01 pm
3/2r-4=r
3/2r=r+4
3r=2r+8
r=8
3/2r=r+4
3r=2r+8
r=8
2006-11-25 8:01 pm
3/2r =4+r
3 =4+r * 2r
3-4 =2r square
-1/2 =r square
0.707106781 = r
3 =4+r * 2r
3-4 =2r square
-1/2 =r square
0.707106781 = r
2006-11-25 7:59 pm
3/2r - r = 4
1/2r =4
r = 4 * 2
r=8
1/2r =4
r = 4 * 2
r=8
收錄日期: 2021-04-12 22:59:34
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https://hk.answers.yahoo.com/question/index?qid=20061125000051KK01573