SOLUTION: If Amy is 4 years older than her brother, Joe, and Susan is 5 years older than Amy, and the total of their ages is 49. How old is Joe?

Algebra ->  Equations -> SOLUTION: If Amy is 4 years older than her brother, Joe, and Susan is 5 years older than Amy, and the total of their ages is 49. How old is Joe?      Log On


   

Question 195470: If Amy is 4 years older than her brother, Joe, and Susan is 5 years older than Amy, and the total of their ages is 49. How old is Joe?
Answer by solver91311(24713) About Me  (Show Source):
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Let x represent Joe's age. Then x + 4 is Amy's age, and x + 4 + 5 = x + 9 is Susan's age. Add 'em up:



Solve for x


John