Oleh: kang Ja'far | 19 November 2012

kelompok 5 dari 88

anggota kelompok :

ade putra.s

zefanya m

guntur

1. jumlah umur ade dan kakak 36 tahun. 9 tahun yg lalu kakak 2x umur ade, tentukan umur kakak dan ade ?

jawab :

K = 2A = 9 K – 2A = 9

K + A = 36 K + A =36 –

3A = 27


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