document.write( "Question 882673: vijay is older than his sister seema by 12 years. four years ago, vijay was four times as his sister. find their present ages \n" ); document.write( "

Algebra.Com's Answer #533051 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"V=S%2B12\"$
\n" ); document.write( " $\"V-4=4%28S-4%29\"$
\n" ); document.write( "Substitute eq. 1 into eq. 2,
\n" ); document.write( " $\"S%2B12-4=4S-16\"$
\n" ); document.write( " $\"-3S=-24\"$
\n" ); document.write( " $\"S=8\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( " $\"V=8%2B12\"$
\n" ); document.write( " $\"V=20\"$
\n" ); document.write( " \n" ); document.write( "

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