document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=965121>Question 965121</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A photograph is 12 cm longer than it is wide. It is mounted in a frame 5 cm wide. The area of the frame is 620 cm squared. What is the dimensions of the photo<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #589874 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=589874\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x and y, photograph dimensions.<BR>\n" );
document.write( "a, the area of just the frame, alone\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=12%2Bx ALIGN=MIDDLE  ALT=\"y=12%2Bx\"   DISABLED_style= \"max-width:90%; height:auto;\" >, assuming y is length.<BR>\n" );
document.write( "Let u be the uniform width of the frame.\r<BR>\n" );
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document.write( "Total area frame plus photograph,<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B2u%29%28y%2B2u%29 ALIGN=MIDDLE  ALT=\"%28x%2B2u%29%28y%2B2u%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "area of just the photograph,<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=xy ALIGN=MIDDLE  ALT=\"xy\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "area of just the frame,<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B2u%29%28y%2B2u%29-xy ALIGN=MIDDLE  ALT=\"%28x%2B2u%29%28y%2B2u%29-xy\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "According to description and assigning,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B2u%29%28y%2B2u%29-xy=a ALIGN=MIDDLE  ALT=\"%28x%2B2u%29%28y%2B2u%29-xy=a\"   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=xy%2B2yu%2B2xu%2B4u%5E2-xy-a=0 ALIGN=MIDDLE  ALT=\"xy%2B2yu%2B2xu%2B4u%5E2-xy-a=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2yu%2B2xu%2B4x%5E2-a=0 ALIGN=MIDDLE  ALT=\"2yu%2B2xu%2B4x%5E2-a=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and through substituting according to description,<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24u%2B2ux%2B2ux%2B4x%5E2-a=0 ALIGN=MIDDLE  ALT=\"24u%2B2ux%2B2ux%2B4x%5E2-a=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2%2B4ux%2B24u-a=0 ALIGN=MIDDLE  ALT=\"4x%5E2%2B4ux%2B24u-a=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%284x%5E2%2B4ux%2B%2824u-a%29=0%29 ALIGN=MIDDLE  ALT=\"highlight_green%284x%5E2%2B4ux%2B%2824u-a%29=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Now would be a good step to substitute the given values, compute constant and coefficients and then finish solving for x.<BR>\n" );
document.write( "Use as described:<BR>\n" );
document.write( "x, unknown photograph width<BR>\n" );
document.write( "u=5<BR>\n" );
document.write( "a=620<BR>\n" );
document.write( "y=12+x </SPAN>\n" );
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