Devaughn is 12 years older than Sydney. The sum of their ages is 64. What is Sydney's age?

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Answer 1 · 2018-03-05T16:48:18

#26#

Let

#D=# Devaughn's age

#S=# Sydney's age

So

#D+S=64#

#D=S+12#

Now

#D+S=64 => D=64-S#

and so

#S+12=64-S#

#2S=52#

#S=26#

Therefore

#D=S+12#

#D=38#