document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=127995>Question 127995</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Tell wether the ordered pair is a solution of the linear system.\r<BR>\n" );
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document.write( "(1,-1);<BR>\n" );
document.write( "2x - y = 3<BR>\n" );
document.write( "4x + 2y = 2\r<BR>\n" );
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document.write( "Any help with this equation would be <b>Greatly</b> appreciated. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #93971 by </B><A HREF=/tutors/aboutme.mpl?userid=JessicaGill><B>JessicaGill(40)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=JessicaGill><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=93971\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There are two ways you can solve this.  By graphing to see if the ordered pair (1, -1) falls on both lines, or by simply substituting the x and y coordinates into both equations and seeing if they prove true.\r<BR>\n" );
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document.write( "Substitution is shown below\r<BR>\n" );
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document.write( "To substitute  take your first equation and substitute 1 for x and -1 for y<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2A1-%28-1%29=3 ALIGN=MIDDLE  ALT=\"2%2A1-%28-1%29=3\"   DISABLED_style= \"max-width:90%; height:auto;\" > would be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2A1%2B1=3 ALIGN=MIDDLE  ALT=\"2%2A1%2B1=3\"   DISABLED_style= \"max-width:90%; height:auto;\" > which simplifies to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3=3 ALIGN=MIDDLE  ALT=\"3=3\"   DISABLED_style= \"max-width:90%; height:auto;\" > so the ordered pair is a solution for the first equation.\r<BR>\n" );
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document.write( "Lets check the second, substituting the values in for the x and y coordinates\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284%2A1%29%2B2%2A%28-1%29=2 ALIGN=MIDDLE  ALT=\"%284%2A1%29%2B2%2A%28-1%29=2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Simplfy this down <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4-2=2 ALIGN=MIDDLE  ALT=\"4-2=2\"   DISABLED_style= \"max-width:90%; height:auto;\" >  to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2=2 ALIGN=MIDDLE  ALT=\"2=2\"   DISABLED_style= \"max-width:90%; height:auto;\" > so the ordered pair (1,-1) is a solution for both equations.\r<BR>\n" );
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document.write( "If you would like me to show you the graphing steps, please let me know.\r<BR>\n" );
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document.write( "thanks,<BR>\n" );
document.write( "Ms. G<BR>\n" );
document.write( " </SPAN>\n" );
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