Problema Solution

Seven years from now, Dylan will be 3 times as old as Thomas is now. Dylan's age is twice Thomas's age now. What are their ages now?

Answer provided by our tutors

let


s = the age of Dylan now


t = the age of Thomas now


Seven years from now, Dylan will be 3 times as old as Thomas is now:


d + 7 = 3t


Dylan's age is twice Thomas's age now:


d = 2t


by solving the system of equations:


d + 7 = 3t


d = 2t


we find:


d = 14 years


t = 7 years


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Dylan is 14 year sold now.


Thomas is 7 years old now.