document.write( "Question 686588: an oriental rug is 52 years old and a persian rug is 16 years old. how many years ago was the oriental rug 4 times as old as the persian rug? \n" ); document.write( "

Algebra.Com's Answer #424846 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+n+\"$ = number of years ago that the
\n" ); document.write( "oriental rug 4 times as old as the persian rug
\n" ); document.write( "given:
\n" ); document.write( " $\"+52+-+n+=+4%2A%28+16+-+n+%29+\"$
\n" ); document.write( " $\"+52+-+n+=+64+-+4n+\"$
\n" ); document.write( " $\"+3n+=+64+-+52+\"$
\n" ); document.write( " $\"+3n+=+12+\"$
\n" ); document.write( " $\"+n+=+4+\"$
\n" ); document.write( "4 years ago, the oriental rug was 4 times as old as the persian rug
\n" ); document.write( "check:
\n" ); document.write( " $\"+52+-+n+=+4%2A%28+16+-+n+%29+\"$
\n" ); document.write( " $\"+52+-+4+=+48+\"$
\n" ); document.write( " $\"+16+-+4+=+12+\"$
\n" ); document.write( " $\"+48+=+4%2A12+\"$
\n" ); document.write( " $\"+48+=+48+\"$
\n" ); document.write( "OK\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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