document.write( "Question 809032: mr alvarado is 20 years older than his son . in 5 years, he will be twice as old as his son will then be find their present ags \n" ); document.write( "
Algebra.Com's Answer #487382 by richwmiller(17219)\"\" \"About 
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d=s+20,
\n" ); document.write( "d+5=2*(s+5)
\n" ); document.write( "s+20+5=2s+10
\n" ); document.write( "s+25=2s+10
\n" ); document.write( "15=s
\n" ); document.write( "35=d
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