SOLUTION: george was three times as old as joe 5 years ago. Their total age now is 42. How old is Joe now?

Question 1100468: george was three times as old as joe 5 years ago. Their total age now is 42. How old is Joe now?
Found 2 solutions by jorel1380, josmiceli:
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
Let g and j be george and joes' ages, respectively. Then
g+j=42; g=42-j and
g-5=3(j-5)
42-j-5=3j-15
4j=52
j=13
g=29
George is 29, Joe is 13
☺☺☺☺
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Joe's age now
Let = George's age now
-------------------------------
(1)
(2)
-------------------------------
(1)
(1)
--------------------------
Add (1) and (2)
(2)
(1)
-----------------------

and
(2)
(2)
-----------------------
Joe is 13 now
----------------
check:
(1)
(1)
(1)
(1)
OK
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