Question 1064319
Devaughn is 11 years younger than Sydney. 
The sum of their ages is 39 . 
What is Sydney's age?
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D = S-11
D+S = 39
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Substitute for "D" and solve for "S"::
S-11+S = 39
2S = 50
Sydney = 20 yrs
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Cheers,
Stan H.
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