Question 225396
Let  D=  Dan"s  age,,,,,and,,,,N= Nathan's age = D+5
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D + N = 19,,,,subst
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D +(D+5) = 19
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2D +5 = 19
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2D =14
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D=7,,,,,N=7+5=12
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check ,,,,,7+5=12,,,ok
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7 +12 =19,,,ok