SOLUTION: Tom is 12 years older than Bob is now In 3 years,Tom will be twice Bob's age. How old is Bob now?

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Question 257930: Tom is 12 years older than Bob is now In 3 years,Tom will be twice Bob's age. How old is Bob now?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
T=X+12
B=X
(X+12)+3=2(X+3)
X+15=2X+6
-X=6-15
-X=-9
X=9 AGE OF BOB NOW.
T=9+12=21 AGE OF TOM NOW.
PROOF:
21+3=2(9+3)
24=2*12
24=24