SOLUTION: Jorge's brother is 4 less than 3 times his age. The sum of their ages is 64. How old is Jorge's brother?

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Question 915902: Jorge's brother is 4 less than 3 times his age. The sum of their ages is 64. How old is Jorge's brother?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Jorge's brother is 4 less than 3 times his age. The sum of their ages is 64. How old is Jorge's brother?

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Equations:
b = 3j - 4
b + j = 64
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Substitute for "b" and solve for "j"::
3j-4 + j = 64
4j = 68
j = 17 yrs (Jorge's age now)
b = 3j-4 = 47 yrs (His brother's age now)
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Cheers,
Stan H.
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