document.write( "Question 1200441: a father is 4 times as old as his son.In 4 years' time,their total age will be 48years. How old are they now? \n" ); document.write( "
Algebra.Com's Answer #834564 by josgarithmetic(39620)\"\" \"About 
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n, the son's age
\n" ); document.write( "4n, father's age\r
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\n" ); document.write( "\n" ); document.write( "In four more years:
\n" ); document.write( "\"%28n%2B4%29%2B%284n%2B4%29=48\"\r
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\n" ); document.write( "\n" ); document.write( "\"n%2B4n%2B4%2B4=40%2B4%2B4\"\r
\n" ); document.write( "\n" ); document.write( "\"5n=40\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28n=8%29\"--------son\r
\n" ); document.write( "\n" ); document.write( "\"4%2A8=highlight%2832%29\"-----father
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