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Umur Part 2 [Ulangan]

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Post time 8-10-2015 02:53 PM | Show all posts |Read mode
Edited by Eva_yy_Ellin at 9-10-2015 07:56 AM

Mel telah berpindah sekolah. Pada waktu rehat, seorang pengawas bertanya kepada Mel umurnya.

Mel cakap
2 tahun lagi, umur saya 2 kali ganda 5 tahun lepas.

Berapakah umur Mel sekarang?

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Post time 8-10-2015 03:37 PM | Show all posts
12 thunn...
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Post time 8-10-2015 04:46 PM | Show all posts
Let x = umur Mel sekarang
Umur Mel 2 tahun lagi = x+2
Umur Mel 5 tahun lepas = x-5

so

x+2 = 2(x-5)
x+2 = 2x - 10
x-2x = -10-2
-x = -12
x = 12


Umur Mel sekarang 12 tahun .....
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 Author| Post time 8-10-2015 07:27 PM | Show all posts
Elle_mujigae replied at 8-10-2015 04:46 PM
Let x = umur Mel sekarang
Umur Mel 2 tahun lagi = x+2
Umur Mel 5 tahun lepas = x-5

elle berjaya yahooo

@Eva_yy_Ellin  



@NaylaArisha

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 Author| Post time 8-10-2015 07:28 PM | Show all posts

jwpn betul, tp takde jalan kira

cara elle tu betul

tq mencuba
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Post time 8-10-2015 08:00 PM | Show all posts
lavender_aqua replied at 8-10-2015 07:28 PM
jwpn betul, tp takde jalan kira

cara elle tu betul

ohh..kene ade jalan kire ek..
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 Author| Post time 8-10-2015 08:03 PM | Show all posts
shogun77 replied at 8-10-2015 08:00 PM
ohh..kene ade jalan kire ek..

mod @Eva_yy_Ellin  pesan, maths kena tunjuk steps


btw ada soalan baru, sudilah jenguk
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