SOLUTION: susan is 3 years older then her sister.their combined age is 33 years.how old is susan?

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Question 675617: susan is 3 years older then her sister.their combined age is 33 years.how old is susan?
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let her sister's age =
= Susan's age
given:




and

---------------
Susan's age is 18
Her Sister's age is 15

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