document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=282189>Question 282189</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I solve for this using substitution. <BR>\n" );
document.write( "5x+8y=18<BR>\n" );
document.write( "x=6-2y </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #204910 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathematicians><B>Mathematicians(84)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathematicians><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=Mathematicians><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=204910\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Substitution is pretty cool\r<BR>\n" );
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document.write( "Check this out:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x+%2B+8y+=+18 ALIGN=MIDDLE  ALT=\"5x+%2B+8y+=+18\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+6-2y ALIGN=MIDDLE  ALT=\"x+=+6-2y\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "are you two equations, we know what x is equal, so look at these next two things:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x+%2B+8y+=+18 ALIGN=MIDDLE  ALT=\"5x+%2B+8y+=+18\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%28highlight%286-2y%29%29+%2B+8y+=+18 ALIGN=MIDDLE  ALT=\"5%28highlight%286-2y%29%29+%2B+8y+=+18\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Look in the highlighted area, see how you just replace x with 6 - 2y, we did this because that is what x was equal to in the second equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%286-2y%29+%2B+8y+=+18 ALIGN=MIDDLE  ALT=\"5%286-2y%29+%2B+8y+=+18\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30+-+10y+%2B+8y+=+18 ALIGN=MIDDLE  ALT=\"30+-+10y+%2B+8y+=+18\"   DISABLED_style= \"max-width:90%; height:auto;\" > distribute<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30+-+2y+=+18 ALIGN=MIDDLE  ALT=\"30+-+2y+=+18\"   DISABLED_style= \"max-width:90%; height:auto;\" > combine like terms<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2y+=+-12 ALIGN=MIDDLE  ALT=\"-2y+=+-12\"   DISABLED_style= \"max-width:90%; height:auto;\" > subtract 30 on both sides<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+6 ALIGN=MIDDLE  ALT=\"y+=+6\"   DISABLED_style= \"max-width:90%; height:auto;\" > divide by -2 on both sides\r<BR>\n" );
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document.write( "Time to solve for X\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+6-2y ALIGN=MIDDLE  ALT=\"x+=+6-2y\"   DISABLED_style= \"max-width:90%; height:auto;\" > we know y = 6<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+6-2%286%29 ALIGN=MIDDLE  ALT=\"x+=+6-2%286%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+-6 ALIGN=MIDDLE  ALT=\"x+=+-6\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Your two answers <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x+=+-6%29 ALIGN=MIDDLE  ALT=\"highlight%28x+=+-6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y+=+6%29 ALIGN=MIDDLE  ALT=\"highlight%28y+=+6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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