SOLUTION: The sum of Carol's and Sandy's ages is 47. In 10 years Carol will be 10 years older than Sandy was 7 years ago. Find their present ages.

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Question 15213: The sum of Carol's and Sandy's ages is 47. In 10 years Carol will be 10 years older than Sandy was 7 years ago. Find their present ages.
Answer by AnlytcPhil(1806) About Me  (Show Source):
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The sum of Carol's and Sandy's ages is 47. In 10 years Carol will be
10 years older than Sandy was 7 years ago. Find their present ages.
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The sum of Carol's and Sandy's ages (C+S) is 47. In 10 years Carol (C+10)
will be 10 years older than(10 more than) Sandy was 7 years ago (S-7).
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(C+S) = 47
(C+10) = 10 more than (S-7), which means "(S-7) plus 10"
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or
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C + S = 47
C + 10 = (S - 7) + 10
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Can you solve this system, after simplifying the second one?
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Answer: Carol is 20 and Sandy is 27
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Edwin