document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=499853>Question 499853</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this.<BR>\n" );
document.write( "x + 10y = 41\r<BR>\n" );
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document.write( "x + 9y = 37\r<BR>\n" );
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document.write( "so far I have:<BR>\n" );
document.write( "x = 41-10y<BR>\n" );
document.write( "(41-10y) + 9y =37<BR>\n" );
document.write( "here is where I get confused.....\r<BR>\n" );
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document.write( "is it: 31x - 9y = 37\r<BR>\n" );
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document.write( "or do I add to get 51x + 9y = 37\r<BR>\n" );
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document.write( "Please help...  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #337877 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=337877\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+%2B+10y+=+41 ALIGN=MIDDLE  ALT=\"x+%2B+10y+=+41\"   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=x+%2B+9y+=+37 ALIGN=MIDDLE  ALT=\"x+%2B+9y+=+37\"   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=x+=+41-10y ALIGN=MIDDLE  ALT=\"x+=+41-10y\"   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=%2841-10y%29+%2B+9y+=37 ALIGN=MIDDLE  ALT=\"%2841-10y%29+%2B+9y+=37\"   DISABLED_style= \"max-width:90%; height:auto;\" >.......so far is good; now just eliminate parentheses\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=41-10y+%2B+9y+=37 ALIGN=MIDDLE  ALT=\"41-10y+%2B+9y+=37\"   DISABLED_style= \"max-width:90%; height:auto;\" >....add <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-10y%7D%7D%5D+and+%7B%7B%7B9y ALIGN=MIDDLE  ALT=\"-10y%7D%7D%5D+and+%7B%7B%7B9y\"   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=41-1y+=37 ALIGN=MIDDLE  ALT=\"41-1y+=37\"   DISABLED_style= \"max-width:90%; height:auto;\" >...move <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" > to the right and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=37 ALIGN=MIDDLE  ALT=\"37\"   DISABLED_style= \"max-width:90%; height:auto;\" > to the left\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=41-37+=y ALIGN=MIDDLE  ALT=\"41-37+=y\"   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=highlight%284=y%29 ALIGN=MIDDLE  ALT=\"highlight%284=y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >...now find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   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=x+=+41-10y ALIGN=MIDDLE  ALT=\"x+=+41-10y\"   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=x+=+41-10%2A4 ALIGN=MIDDLE  ALT=\"x+=+41-10%2A4\"   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=x+=+41-40 ALIGN=MIDDLE  ALT=\"x+=+41-40\"   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=highlight%28x+=+1%29 ALIGN=MIDDLE  ALT=\"highlight%28x+=+1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "PS:\r<BR>\n" );
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document.write( "you asked \"is it: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=31x+-+9y+=+37 ALIGN=MIDDLE  ALT=\"31x+-+9y+=+37\"   DISABLED_style= \"max-width:90%; height:auto;\" >?...answer: NO, you cannot subtract <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10y ALIGN=MIDDLE  ALT=\"10y\"   DISABLED_style= \"max-width:90%; height:auto;\" > from <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=41 ALIGN=MIDDLE  ALT=\"41\"   DISABLED_style= \"max-width:90%; height:auto;\" > (as you cannot subtract apples from bananas)...<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=41 ALIGN=MIDDLE  ALT=\"41\"   DISABLED_style= \"max-width:90%; height:auto;\" > is whole number and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10y ALIGN=MIDDLE  ALT=\"10y\"   DISABLED_style= \"max-width:90%; height:auto;\" > is a product of whole number <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10 ALIGN=MIDDLE  ALT=\"10\"   DISABLED_style= \"max-width:90%; height:auto;\" > and unknown variable <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
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