Cevaplar

2013-01-03T18:56:18+02:00

180..........................................

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En İyi Cevap!
2013-01-03T18:58:56+02:00

7k+2k=9k

 

9k=810

 

k=810:9

k=90

 

2k=2.90=180

 

 

1 5 1