# SOLUTION: Eddie is three times as old dave. seven years ago,eddie was five times old as dave.how old are they now?

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 Click here to see ALL problems on Age Word Problems Question 490860: Eddie is three times as old dave. seven years ago,eddie was five times old as dave.how old are they now?Answer by Maths68(1474)   (Show Source): You can put this solution on YOUR website!Let x=Eddie’s current age y=Dave’s current age Eddie is three times as old Dave means x=3y…………..(1) Seven years ago means we have to subtract 7 from both ages x-7=y-7 then Eddie was five times old as Dave x-7=5(y-7) x-7=5y-35 x=5y-35+7 x=5y-28…………(2) Put the value of x from (1) to (2) x=5y-28 3y=5y-28 3y-5y=-28 -2y=-28 Divide by -2 both sides of above equation -2y/-2=-28/-2 y=14 Put the value of y in equation (1) x=3y x=3(14) x=42 Eddie is 42 and Dave is 14 years old.