SOLUTION: Lucy is k years old. She has a sister who is three years younger than she is and another sister who is five years less than twice Lucy;s age. Write an expression, in simplified for

Question 896397: Lucy is k years old. She has a sister who is three years younger than she is and another sister who is five years less than twice Lucy;s age. Write an expression, in simplified form, for the sum of the three girls' ages.
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Lucy is k years old. She has a sister who is k-3 and another sister who is -5+2k; Write an expression, in simplified form, for the sum of the three girls' ages.

Sum of their ages:

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