SOLUTION: The age of brendan is 3 less than 5 times the age of jason. if the sum of their ages is 81. how old are they?

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Question 1119712: The age of brendan is 3 less than 5 times the age of jason. if the sum of their ages is 81. how old are they?
Found 2 solutions by josgarithmetic, josmiceli:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Assign variables, follow the description literally, and solve. One or two linear equations.

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +a+ = Brendan's age now
Let +b+ = Jason's age now
---------------------------------
(1) +a+=+5b+-+3+
(2) +a+%2B+b+=+81+
--------------------------
Plug (1) into (2)
(2) +5b+-+3+%2B+b+=+81+
(2) +6b+=+84+
(2) +b+=+14+
and
(1) +a+=+5%2A14+-+3+
(1) +a+=+70+-+3+
(1) +a+=+67+
-----------------------
Brendon is 67
Jason is 14
-----------------------
check:
(1) +67+=+5%2A14+-+3+
(1) +67+=+70+-+3+
(1) +67+=+67+
and
(2) +67+%2B+14+=+81+
(2) +81+=+81+
OK