SOLUTION: Ralph is 5 years more than 4 times his cousin Martin.In 5 years, he will be three times his cousin’s age then.Find their age now

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Question 1125865: Ralph is 5 years more than 4 times his cousin Martin.In 5 years, he will be three times his cousin’s age then.Find their age now
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +a+ = Ralph's age now
Let +b+ = Martin's age now
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(1) +a+=+4b+%2B+5+
(2) +a+%2B+5+=+3%2A%28+b+%2B+5+%29+
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Plug (1) into (2)
(2) +4b+%2B+5+%2B+5+=+3b+%2B+15+
(2) +b+=+5+
and
(1) +a+=+4%2A5+%2B+5+
(1) +a+=+25+
Ralph is 25
Martin is 5
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check:
(2) +25+%2B+5+=+3%2A%28+5+%2B+5+%29+
(2) +30+=+30+