document.write( "Question 1121798: Sally is having a problem with her puppy leaving the yard so she decides to build a new fence. The length of the yard is 7 feet more than 6 times the width. She needs 70 feet of fencing to do the job. Find the length of the yard.
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Algebra.Com's Answer #737790 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
The perimeter, $\"+P+\"$ is
\n" ); document.write( " $\"+P+=+2W+%2B+2L+\"$
\n" ); document.write( "Given:
\n" ); document.write( " $\"+L+=+6W+%2B+7+\"$
\n" ); document.write( "Plug this result back into $\"+P+\"$
\n" ); document.write( " $\"+P+=+2W+%2B+2%2A%28+6W+%2B+7+%29+\"$
\n" ); document.write( " $\"+P+=+70+\"$
\n" ); document.write( " $\"+70+=+2W+%2B+12W+%2B+14+\"$
\n" ); document.write( " $\"+70+=+14W+%2B+14+\"$
\n" ); document.write( " $\"+14W+=+56+\"$
\n" ); document.write( " $\"+W+=+4+\"$
\n" ); document.write( "And
\n" ); document.write( " $\"+L+=+6%2A4+%2B+7+\"$
\n" ); document.write( " $\"+L+=+24+%2B+7+\"$
\n" ); document.write( " $\"+L+=+31+\"$
\n" ); document.write( "The length is 31 ft
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\n" ); document.write( "Check:
\n" ); document.write( " $\"+P+=+2%2A4+%2B+2%2A31+\"$
\n" ); document.write( " $\"+P+=+8+%2B+62+\"$
\n" ); document.write( " $\"+P+=+70+\"$
\n" ); document.write( "OK
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