document.write( "Question 1164673: The sum of the ages of David and Ann is twenty-five. Five years ago David was four times as old as Ann. How old are they now? \n" ); document.write( "

Algebra.Com's Answer #789087 by josgarithmetic(39620) $\"\"$ $\"About$

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$\"system%28y%2Bx=25%2Cy-5=4%28x-5%29%29\"$ \r
\n" ); document.write( "\n" ); document.write( "--\r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( " $\"y-5=4%28x-5%29\"$
\n" ); document.write( " $\"y-5=4x-20\"$
\n" ); document.write( " $\"4x-20%2B5=y\"$
\n" ); document.write( " $\"4x-15=y\"$
\n" ); document.write( " $\"4x-15=25-x\"$
\n" ); document.write( " $\"5x=25%2B15\"$
\n" ); document.write( " $\"highlight%28x=8%29\"$ ------------Ann \n" ); document.write( "

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