document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=348130>Question 348130</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the length of a rectangle is 3 less than twice the width the perimeter of the rectangle is 78 find the dimensions of the rectangle   </SPAN>\n" );
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document.write( "Let:\r<BR>\n" );
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document.write( "x =  length of the rectangle<BR>\n" );
document.write( "y =  width of the rectangle\r<BR>\n" );
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document.write( "x = 2y -3\r<BR>\n" );
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document.write( "perimeter = 2x + 2y = 78\r<BR>\n" );
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document.write( "Plug in x into the above equation:\r<BR>\n" );
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document.write( "2(2y-3) + 2y = 78<BR>\n" );
document.write( "4y - 6 + 2y = 78<BR>\n" );
document.write( "6y - 6 = 78\r<BR>\n" );
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document.write( "bring the 6 to the other side:\r<BR>\n" );
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document.write( "6y = 84\r<BR>\n" );
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document.write( "divide both sides by 6:\r<BR>\n" );
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document.write( "y = 14 = the width of the rectangle\r<BR>\n" );
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document.write( "The length is 2(14)-3 = 25\r<BR>\n" );
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document.write( "So, the length of the rectangle is 25 units, and the width is 14 units.  </SPAN>\n" );
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