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Carmen is 9 years older than David. Seven years ago, the sum of their ages was 25. How old are they now?

Solution

Carmen is 9 years older than David. Seven years ago, the sum of their ages was 25. How old are they now?

Solution

Carmen^{'} s age is : 24

David^{'} s age is : 15

Solution steps

Translate the problem into an equation:

x - 7 + x - 9 - 7 = 25

Solve for

x, x - 7 + x - 9 - 7 = 25 : x = 24

Find age

Carmen^{'} s age is : 24

David^{'} s age is : 15

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