document.write( "Question 912664: the perimeter of a rectangle is 106 cm. If the length is 7 cm less than three times the width, what are the dimensions? \n" ); document.write( "
Algebra.Com's Answer #553996 by JulietG(1812)\"\" \"About 
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perimeter = 2length + 2width
\n" ); document.write( "106 = 2(3w-7) + 2w
\n" ); document.write( "106 = 6w-14 +2w
\n" ); document.write( "106 = 8w-14
\n" ); document.write( "120 = 8w
\n" ); document.write( "15 = w
\n" ); document.write( "l = 3*15 - 7
\n" ); document.write( "l = 45-7
\n" ); document.write( "l = 38
\n" ); document.write( "106 = 38 + 38 + 15 + 15
\n" ); document.write( "106 = 76 + 30
\n" ); document.write( "106 = 106
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