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

Solution

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

Solution

Allison^{'} s age is : 11

Sister^{'} s age is : 14

Solution steps

Translate the problem into an equation:

x + x + 3 = 25

Solve for

x, x + x + 3 = 25 : x = 11

Find age

Allison^{'} s age is : 11

Sister^{'} s age is : 14

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