document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=207839>Question 207839</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve system using substution method<BR>\n" );
document.write( "4x+y=5<BR>\n" );
document.write( "5y=x+y<BR>\n" );
document.write( "solution (?,?) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #157214 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=157214\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Did you copy this one correctly?  Should the second equation should be 5=x+y?  Either one is somewhat ugly, so I'll go with your problem as stated.\r<BR>\n" );
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document.write( "In the second equation, subtract y from each side.<BR>\n" );
document.write( "5y=x+y<BR>\n" );
document.write( "4y=x\r<BR>\n" );
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document.write( "Substitute this into the first equation for x:<BR>\n" );
document.write( "4x+y=5<BR>\n" );
document.write( "4(4y)+ y = 5<BR>\n" );
document.write( "16y + y=5<BR>\n" );
document.write( "17y=5<BR>\n" );
document.write( "y=5/17\r<BR>\n" );
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document.write( "To solve for x, go back to the equation x=4y<BR>\n" );
document.write( "x=4y<BR>\n" );
document.write( "x=4(5/17)<BR>\n" );
document.write( "x=20/17\r<BR>\n" );
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document.write( "The solution is (20/17,5/17)\r<BR>\n" );
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document.write( "Check in the OTHER equation<BR>\n" );
document.write( "4x+y =5<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2820%2F17%29%2B%285%2F17%29+=+5 ALIGN=MIDDLE  ALT=\"4%2820%2F17%29%2B%285%2F17%29+=+5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=80%2F17+%2B5%2F17=5 ALIGN=MIDDLE  ALT=\"80%2F17+%2B5%2F17=5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=85%2F17=5 ALIGN=MIDDLE  ALT=\"85%2F17=5\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "It checks!!\r<BR>\n" );
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document.write( "R^2 </SPAN>\n" );
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