Description: enumeration method (exhaustive) "Benren Regulation" : all possible test of January 1, and selected eligible for the results output. Cases-- 100 yuan to buy a 100 chicken : 100 yuan to buy 100 chickens. Known rooster 5 yuan/only, the hen 3 yuan/only and chicken one yuan/3. Analysis : This is a volatile equation-- Group 3 linear equation (3 variable, equation 2) x+ y+ z = 100 5x+3 y+ z/3 = 100 x located rooster
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