SOLUTION: John's age is three years more than twice Bill's age. Three years ago John was four times as old as Bill was then. How old is each now?

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Question 344159: John's age is three years more than twice Bill's age. Three years ago John was four times as old as Bill was then. How old is each now?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
NOW:
JOHN=X+3
BILL=X
3 YEARS AGO:
JOHN=(X+3-3)
BILL=(X-3)4
(X+3-3)=4(X-3)
X=4X-12
X-4X=-12
-3X=-12
X=-12/-3
X=4 BILL'S AGE NOW.
4+3=7 JOHN'S AGE NOW.
PROOF:
(4+3-3)=(4-3)4
4=1*4
4=4