document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=278343>Question 278343</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Systems of Equations<BR>\n" );
document.write( "1. Solve the following problems for X and Y i these two system equations, and for X and Y and Z, in these three equations.<BR>\n" );
document.write( "2. Make sure show your work step by step.<BR>\n" );
document.write( "3. Fill the table:<BR>\n" );
document.write( "Q#   Equation 1:     Equation 2 :    Equation 3:       X= :     Y= :     Z= :<BR>\n" );
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document.write( "1.   X+Y=7;          X+2Y=11;        none            --      --     none        <BR>\n" );
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document.write( "2.   3X+7Y=24;       9X+5Y=24;       none           --      --      none <BR>\n" );
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document.write( "3.   4X+Y=17;        2X+3Y=21;       none           --      --      none <BR>\n" );
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document.write( "4.   18X+Y=42;       6X-3Y=-6;       none           --      --      none <BR>\n" );
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document.write( "5.   X+Y+2Z=5;       X+Y=5;          X+3Y+Z=11;     --      --      --  <BR>\n" );
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document.write( "6.   X+10Y+Z=52;     5X+Y+4Z=15;     X+2Y-3Z=12;    --      --      --<BR>\n" );
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document.write( "7.   2X+2Y+4Z=10;    3X+3Y=15;       4X+12Y+4Z=44;  --      --      --  ____________________________________________________________________________<BR>\n" );
document.write( "4. What is the difference between system #5 and system #7? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #202628 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=202628\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7. <BR>\n" );
document.write( "2X+2Y+4Z=10 --> x + y + 2z = 5<BR>\n" );
document.write( "3X+3Y=15 --> x + y = 5<BR>\n" );
document.write( "4X+12Y+4Z=44 --> x + 3y + z = 11<BR>\n" );
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document.write( "Reducing often helps.<BR>\n" );
document.write( "x + y + 2z = 5<BR>\n" );
document.write( "x + y + 0z = 5<BR>\n" );
document.write( "---------------- Subtract<BR>\n" );
document.write( "2z = 0<BR>\n" );
document.write( "z = 0<BR>\n" );
document.write( "------<BR>\n" );
document.write( "x + 3y = 11<BR>\n" );
document.write( "x + y = 5<BR>\n" );
document.write( "----------- Subtract<BR>\n" );
document.write( "2y = 6<BR>\n" );
document.write( "y = 3 <BR>\n" );
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document.write( "x = 2<BR>\n" );
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document.write( "Do the others in a similar manner<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "Don't type in all those lines.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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