F.2 MATHS

🎓 學業台小學及中學教育

nana

2007-12-17 6:51 pm

把主項變換為q

p/3+11=4(p/2+1)

更新1:

http://hk.knowledge.yahoo.com/question/?qid=7007121700760

回答 (4)

Henry

2007-12-17 6:59 pm

✔ 最佳答案

p/3+11=4(p/2+1)
把主項變換為q
你有否打錯左呢，either p nor q

p/3+11=2p+4

p+33=6p+12
21=5p
p=21/5

參考: 希望幫到你

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Cathy

2007-12-17 7:01 pm

把主項變換為p
P/3+11=4(p/2+1)
p/3+11=2p+4
7=2p-p/3
7=(2-1/3)p
7=5/6p
42=5p
p=42/5
p=8 2/5

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pooh

2007-12-17 7:00 pm

p/3 + 11 = 4 (p/2 + 1)

p/3 + 11 = 2p + 4

3 (p/3 + 11) = 3 (2p + 4)

p + 33 = 6p +12

33 - 12 = 6p - p

5p = 21

p = 4 1/5

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[匿名]

2007-12-17 7:00 pm

p/3+11=4(p/2+1)
=> 6(p/3+11)=6(4(p/2+1))
=> 2p+66 = 12p+24
=> 66 - 24 = 12p - 2p
=> 42 = 10p
=> p = 4.2

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