SOLUTION: Bob is four more than three times the age of his little sister. If Bod is nineteen, then how old is little sister?

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Question 1005634: Bob is four more than three times the age of his little sister. If Bod is nineteen, then how old is little sister?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
Bob is four more than three times
the age of his little sister.
B = 4 + 3S
If Bob is 19
4 + 3S = 19
3S = 19 - 4
3S = 15
S = 15/3
S = 5
Bob's sister is 5 years old.
hope this helps :-)