document.write( "Question 85570: A rectangle has sides of 3x-4 and 7x+10. Find teh expression that represents its perimeter \n" ); document.write( "
Algebra.Com's Answer #61806 by jim_thompson5910(35256)\"\" \"About 
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Perimeter:\r
\n" ); document.write( "\n" ); document.write( "\"P=2w%2B2L\"\r
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\n" ); document.write( "\n" ); document.write( "where \"w=3x-4\" and \"L=7x%2B10\" (in either order)\r
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\n" ); document.write( "\n" ); document.write( "\"P=2%283x-4%29%2B2%287x%2B10%29\" Plug in the given dimensions\r
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\n" ); document.write( "\n" ); document.write( "\"P=6x-8%2B14x%2B20%29\" Distribute\r
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\n" ); document.write( "\n" ); document.write( "\"P=20x%2B12%29\" Combine like terms
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