document.write( "Question 1190971: A man is 4times older than his son. 5years ago the product of their age is 175.find their present age.
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Algebra.Com's Answer #822713 by josgarithmetic(39618)\"\" \"About 
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The son's age, b
\n" ); document.write( "The man's age, b+4b=5b\r
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\n" ); document.write( "\n" ); document.write( "The description, \"%28b-5%29%285b-5%29=175\".
\n" ); document.write( "You can solve this and decide if it gives a meaningful result.\r
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\n" ); document.write( "\n" ); document.write( "Factor of 5 is on both sides, so
\n" ); document.write( "\"%28b-5%29%28b-1%29=35\"
\n" ); document.write( "and these factors will not give the whole numbers in case you were expecting some.
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