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mary is 6 years older than her sister kelly. the sum of their ages is 48. how old is kelly

Solution

mary is 6 years older than her sister kelly. the sum of their ages is 48. how old is kelly

Solution

Kelly^{'} s age is : 21

Solution steps

Translate the problem into an equation:

x + x - 6 = 48

Solve for

x, x + x - 6 = 48 : x = 27

Find Kelly's age

: 21

Kelly^{'} s age is : 21

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