SOLUTION: tom is 8 years old. sidd is 5 years younger than tom .how old is sidd?

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Question 315484: tom is 8 years old. sidd is 5 years younger than tom .how old is sidd?
Answer by moshiz08(60) About Me  (Show Source):
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Tom is eight years old, so T+=+8.
Sid is 5 years younger than Tom. Younger means that his age is smaller, so we subtract: S+=+T+-+5.
But we already know that T=8, so we can substitute that into our equation to get S+=+T+-+5+=+8+-+5+=+3, so Sid is 3 years old.