document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1108651>Question 1108651</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am trying to find a solution to a problem for my 7th grader that has me confused. \r<BR>\n" );
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document.write( "I have a rectangle.<BR>\n" );
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document.write( "The long side \"length\" is 3x + 4 and the short side \"width\" is x - 2. \r<BR>\n" );
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document.write( "The perimeter is 20. \r<BR>\n" );
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document.write( "I have to figure the value of x. \r<BR>\n" );
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document.write( "I came up with the value of 2 for x.\r<BR>\n" );
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document.write( "If that is correct that the rectangle would have 2 sides of 10cm <BR>\n" );
document.write( "And 2 sides of 0. Please help. \r<BR>\n" );
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document.write( "     _____3x_+4_________<BR>\n" );
document.write( "     |                 <BR>\n" );
document.write( "     |x -2                <BR>\n" );
document.write( "     |_________________|\r<BR>\n" );
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document.write( "P = 20. Solve for x \r<BR>\n" );
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document.write( "      </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #723665 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=723665\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Perimeter = 2L + 2W. Agreed? If so:<BR>\n" );
document.write( "2(3x + 4) + 2(x - 2) = 20 <BR>\n" );
document.write( "Distributive Law of multiplication:<BR>\n" );
document.write( "6x + 8 + 2x - 4 = 20 <BR>\n" );
document.write( "Group similar:<BR>\n" );
document.write( "6x + 2x + 8 - 4 = 20<BR>\n" );
document.write( "8x + 4 = 20<BR>\n" );
document.write( "Subtract 4, both sides:<BR>\n" );
document.write( "8x = 16<BR>\n" );
document.write( "x = 2<BR>\n" );
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document.write( "Check:<BR>\n" );
document.write( "2(3 * 2 + 4) + 2(2 - 2) = 20<BR>\n" );
document.write( "2(6 + 4) + 4 - 4 = 20 <BR>\n" );
document.write( "12 + 8 + 4 - 4 = 20<BR>\n" );
document.write( "20 + 0 = 20 Correct<BR>\n" );
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