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2014-08-18T16:43:35+03:00
12(a+7b)= 23(3a+2b)

12a + 84b= 69a + 46b

12a-69 =  46b - 84b

-57a = -38b

57a=38b

a/b= 38/57
1 5 1
2014-08-18T16:44:48+03:00
(3a+2b)X23=(a+7b)X12 =>69a+46b=12a+84b

=>57a=38b=>a\b=38\57