SOLUTION: Ben has a sister that is one year more than twice his age and a brother that is four years older than him. The sum of their ages is 37. How old is each person?

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Question 112770: Ben has a sister that is one year more than twice his age and a brother that is four years older than him. The sum of their ages is 37. How old is each person?
Answer by SHUgrad05(58) About Me  (Show Source):
You can put this solution on YOUR website!
Brian's age: x
Brian's bro: x+4
Brian's sis: 2x+1
Their ages=37:
x+x+4+2x+1=37 -> Simplify
4x+5=37
4x=32
x=8
Brian: 8
Brian's bro: x+4= 8+4= 12
Brian's sis: 2x+1= 16+1= 17