document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=151459>Question 151459</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1.  Solve for X and Y in the following problems.  Make sure you show all your work so you can get partial credit even if your final answer is wrong.\r<BR>\n" );
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document.write( "a.  X + Y=7 , X + 2Y = 11\r<BR>\n" );
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document.write( "b.  3X + 7Y = 24,  9X + 5Y = 24\r<BR>\n" );
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document.write( "c.  4X + Y = 17,  2X + 3Y = 21\r<BR>\n" );
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document.write( "d.  18X + Y = 42, 6X - 3Y = -6\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #111372 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=111372\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I'LL DO THE FIRST 2 TO SHOW YOU HOW IT'S DONE.<BR>\n" );
document.write( "THE LAST 2 ARE FOR YOU TO PRACTICE WITH NOW THAT YOU HAVE THE PROCEDURE.<BR>\n" );
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document.write( "a)X + Y=7 <BR>\n" );
document.write( "X + 2Y = 11 SUBTRACT.<BR>\n" );
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document.write( "-Y=-4<BR>\n" );
document.write( "Y=4 ANSWER.<BR>\n" );
document.write( "X+4=7<BR>\n" );
document.write( "X=7-4<BR>\n" );
document.write( "X=3 ANSWER.<BR>\n" );
document.write( "PROOF<BR>\n" );
document.write( "3+2*4=11<BR>\n" );
document.write( "3+8=11<BR>\n" );
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document.write( "b)3X + 7Y = 24 MULTIPLY BY -3 & ADD.<BR>\n" );
document.write( " 9X + 5Y = 24<BR>\n" );
document.write( "-9X-21Y=-72 ADD.<BR>\n" );
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document.write( "-16Y=-48<BR>\n" );
document.write( "Y=-48/-16<BR>\n" );
document.write( "Y=3 ANSWER.<BR>\n" );
document.write( "9X+5*3=24<BR>\n" );
document.write( "9X+15=24<BR>\n" );
document.write( "9X=24-15<BR>\n" );
document.write( "9X=9<BR>\n" );
document.write( "X=9/9<BR>\n" );
document.write( "X=1 ANSWER.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "3*1+7*3=24<BR>\n" );
document.write( "3+21=24<BR>\n" );
document.write( "24=24\r<BR>\n" );
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