document.write( "Question 225396: Nathan is 5 years older than Dan. If the total of their ages is 19, how old is Dan? \n" ); document.write( "
Algebra.Com's Answer #168181 by RAY100(1637)\"\" \"About 
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Let D= Dan\"s age,,,,,and,,,,N= Nathan's age = D+5
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\n" ); document.write( "D + N = 19,,,,subst
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\n" ); document.write( "D +(D+5) = 19
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\n" ); document.write( "2D +5 = 19
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\n" ); document.write( "2D =14
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\n" ); document.write( "D=7,,,,,N=7+5=12
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\n" ); document.write( "check ,,,,,7+5=12,,,ok
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\n" ); document.write( "7 +12 =19,,,ok
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