document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=111579>Question 111579</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One side of this rectangle has a length of 12cm. The other side has a length of 2x+1 cm. The perimeter of the rectangle is 46 cm. Find the length of the unknown sides. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #81372 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=81372\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Remember the perimeter of a rectangle is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=2W%2B2L ALIGN=MIDDLE  ALT=\"P=2W%2B2L\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Since we know the length is 12, the width is 2x+1, and the perimeter is 46, we can plug this info into the formula\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=46=2%282x%2B1%29%2B2%2812%29 ALIGN=MIDDLE  ALT=\"46=2%282x%2B1%29%2B2%2812%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=46=2%282x%2B1%29%2B24 ALIGN=MIDDLE  ALT=\"46=2%282x%2B1%29%2B24\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=46=4x%2B2%2B24 ALIGN=MIDDLE  ALT=\"46=4x%2B2%2B24\"   DISABLED_style= \"max-width:90%; height:auto;\" > Distribute\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=46=4x%2B26 ALIGN=MIDDLE  ALT=\"46=4x%2B26\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms on the right side\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0=4x%2B26-46 ALIGN=MIDDLE  ALT=\"0=4x%2B26-46\"   DISABLED_style= \"max-width:90%; height:auto;\" >Subtract 46 from both sides\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-4x=26-46 ALIGN=MIDDLE  ALT=\"-4x=26-46\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract 4x from both sides\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-4x=-20 ALIGN=MIDDLE  ALT=\"-4x=-20\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms on the right side\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-20%29%2F%28-4%29 ALIGN=MIDDLE  ALT=\"x=%28-20%29%2F%28-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide both sides by -4 to isolate x\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=5 ALIGN=MIDDLE  ALT=\"x=5\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide\r<BR>\n" );
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document.write( "Answer:\r<BR>\n" );
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document.write( "So our answer is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=5 ALIGN=MIDDLE  ALT=\"x=5\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "Now plug this into 2x+1\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%285%29%2B1=10%2B1=11 ALIGN=MIDDLE  ALT=\"2%285%29%2B1=10%2B1=11\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So this means the width is 11\r<BR>\n" );
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document.write( "Check:\r<BR>\n" );
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document.write( "2(12)+2(11)=24+22=46...works </SPAN>\n" );
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