SOLUTION: When Lisa was born, her dad was 26 years old. Now he is 3 times her age. How old is Lisa?
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Question 691635: When Lisa was born, her dad was 26 years old. Now he is 3 times her age. How old is Lisa?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The difference in their ages always
stays the same ( 26 yrs )
Let = Dad's age
Let = Lisa's age
-------------
By substitution:
and
Lisa is 13
check answer:
OK
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