document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=377179>Question 377179</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve using the substitution method:   <BR>\n" );
document.write( "x-y=5    x+2y=7   <BR>\n" );
document.write( "I came up with 15y=7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #268756 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=268756\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-y = 5...equation 1    <BR>\n" );
document.write( "x+2y=7....equation 2\r<BR>\n" );
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document.write( "x - y = 5\r<BR>\n" );
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document.write( "-y = -x + 5\r<BR>\n" );
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document.write( "y = (-x + 5)/-1\r<BR>\n" );
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document.write( "y = x - 5\r<BR>\n" );
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document.write( "Plug (x - 5) for y into equation 2 and solve for x.\r<BR>\n" );
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document.write( "x + 2y = 7 \r<BR>\n" );
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document.write( "x + 2(x - 5) = 7\r<BR>\n" );
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document.write( "x + 2x - 10 = 7\r<BR>\n" );
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document.write( "3x - 10 = 7\r<BR>\n" );
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document.write( "3x = 7 + 10\r<BR>\n" );
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document.write( "3x = 17\r<BR>\n" );
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document.write( "x = 17/3\r<BR>\n" );
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document.write( "We now plug 17/3 into EITHER equation 1 or 2 to find the value of y.\r<BR>\n" );
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document.write( "I will use x - y = 5 but you can use the other equation if you'd like.\r<BR>\n" );
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document.write( "17/3 - y = 5\r<BR>\n" );
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document.write( "-y = 5 - 17/3\r<BR>\n" );
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document.write( "-y = -2/3\r<BR>\n" );
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document.write( "y = -2/3 divided by -1\r<BR>\n" );
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document.write( "y = 2/3\r<BR>\n" );
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document.write( "Final answer: x = 17/3 and y = 2/3 which can also be written as a point in the form (17/3, 2/3).\r<BR>\n" );
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document.write( "That is the point where the two lines meet on the coordinate plane.\r<BR>\n" );
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document.write( "Understand?\r<BR>\n" );
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document.write( "  <BR>\n" );
document.write( " </SPAN>\n" );
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