document.write( "Question 1129703: mr. valdez is twice as old as his son. 8 years ago, he was 4 times as old as his son. what are the present ages of the father and the son?
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Algebra.Com's Answer #746294 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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mr. valdez is twice as old as his son.
\n" ); document.write( "v = 2s
\n" ); document.write( " 8 years ago, he was 4 times as old as his son.
\n" ); document.write( "v - 8 = 4(s-8)
\n" ); document.write( "v - 8 = 4s - 32
\n" ); document.write( "v = 4s - 32 + 8
\n" ); document.write( "v = 4s - 24
\n" ); document.write( " what are the present ages of the father and the son?
\n" ); document.write( "Replace v in the above equation, with 2s
\n" ); document.write( "2s = 4s - 24
\n" ); document.write( "2s - 4s = -24
\n" ); document.write( "-2s = -24
\n" ); document.write( "s = -24/-2
\n" ); document.write( "s = +12 yrs old is the son
\n" ); document.write( "then obviously
\n" ); document.write( "2(12) = 24 yrs old is Mr V
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\n" ); document.write( "Check this in the statement
\n" ); document.write( "\" 8 years ago, he was 4 times as old as his son. \"
\n" ); document.write( "24 - 8 = 4(12 - 8)
\n" ); document.write( "16 = 4(4) \n" ); document.write( "

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