Question 1014738
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If the sum is 79 in five years, the current sum is:
79 years - 5 years for Raquel - 5 years for Ben = 69 years
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Raquel's age = Ben's age + 3 years
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Raquel's age + Ben's age = 69 years . Substitute  (Ben's age + 3 years) for (Raquel's age)
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Ben's age + 3 yrs + Ben's age = 69 years . Subtract 3 yrs from each side.  
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Ben's age + Ben's age = 66 years
2 x Ben's age = 66 years . Divide each side by 2.
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ANSWER 1: Ben's age = 33 years
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Raquel's age = Ben's age + 3 years
Raquel's age = 33 years + 3 years
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ANSWER 2: Raquel's age = 36 years
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CHECK:
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Raquel's age + 5 yrs + Ben's age + 5 yrs = 79 yrs
36 yrs + 5 yrs + 33 yrs + 5 yrs = 79 yrs
79 yrs = 79 yrs