document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=708873>Question 708873</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One store offers 10 soccer balls and 2 soccer ball bags for 155 dollars. Another store offers 12 soccer balls and 3 soccer ball bags for 189 dollars. Write and solve a linear equation to find out how much one soccer ball and one bag costs. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #436291 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</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=436291\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> These must be two stores of the same company; otherwise each store would charge different prices for an item.  \r<BR>\n" );
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document.write( "x price of ball<BR>\n" );
document.write( "y price of  bag\r<BR>\n" );
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document.write( "10x+2y=155<BR>\n" );
document.write( "AND<BR>\n" );
document.write( "12x+3y=189\r<BR>\n" );
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document.write( "Divide the second equation by 3:<BR>\n" );
document.write( "4x+y=63\r<BR>\n" );
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document.write( "Now your system is this:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10x%2B2y=155 ALIGN=MIDDLE  ALT=\"10x%2B2y=155\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%2By=63 ALIGN=MIDDLE  ALT=\"4x%2By=63\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Subtract 2 times the second equation from the first equation and find value for x.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10x%2B2y-8x-2y=155-126 ALIGN=MIDDLE  ALT=\"10x%2B2y-8x-2y=155-126\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x=29 ALIGN=MIDDLE  ALT=\"2x=29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=14.50%29 ALIGN=MIDDLE  ALT=\"highlight%28x=14.50%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, $14.50 for a soccer ball. \r<BR>\n" );
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document.write( "Finding y:<BR>\n" );
document.write( "4x+y=63<BR>\n" );
document.write( "y=63-4x<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=64-4%2814.5%29 ALIGN=MIDDLE  ALT=\"y=64-4%2814.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=6.00%29 ALIGN=MIDDLE  ALT=\"highlight%28y=6.00%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, $6.00 for a soccer bag. </SPAN>\n" );
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