SOLUTION: John and Sam are brothers Sam is 3 year old John is j years old if u multiply john age by 3 and subtract 12 you get sam age how old is john

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Question 1065382: John and Sam are brothers Sam is 3 year old John is j years old if u multiply john age by 3 and subtract 12 you get sam age how old is john
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+3j+-+12+=+3+
Add +12+ to both sides
+3j+=+15+
Divide both sides by +3+
+j+=+5+
John is 5