Question 1156293: Mrs. Smith is 8 years more than triple the age of her son. The difference between their ages is 20. How old is Mrs. Smith ? Found 2 solutions by Alan3354, josmiceli:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Mrs. Smith is 8 years more than triple the age of her son. The difference between their ages is 20. How old is Mrs. Smith ?
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M = 3S + 8
M - S = 20
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etc
You can put this solution on YOUR website! Let = Mrs. Smith's age
Let = her son's age
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(1)
(2)
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Plug (1) into (2)
(2)
(2)
(2)
and
(2)
(2)
(2)
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26 = Mrs. Smith's age
6 = her son's age
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check:
(1)
(1)
(1)
OK
