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人気のある >

allison is 3 years younger than her sister. the sum of their ages is 25 how old is allisons sister

解

allison is 3 years younger than her sister. the sum of their ages is 25 how old is allisons sister

解

Allison^{'} s age is : 11

Sister^{'} s age is : 14

解答ステップ

Translate the problem into an equation:

x + x + 3 = 25

x

を解く

x + x + 3 = 25 : x = 11

発見する age

Allison^{'} s age is : 11

Sister^{'} s age is : 14

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