document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=961969>Question 961969</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the value of x in the system shown ?\r<BR>\n" );
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document.write( "x+y=7<BR>\n" );
document.write( "3x-y=5\r<BR>\n" );
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document.write( "can you explain it in details? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #587707 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=587707\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Add them together:<BR>\n" );
document.write( "x+y=7<BR>\n" );
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document.write( "3x-y=5<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "4x=12 (+y and -y cancel each other) Now divide both sides by 4:<BR>\n" );
document.write( "x= 3 <BR>\n" );
document.write( "In the first equation:<BR>\n" );
document.write( "3+y=7 Subtract 3 on both sides:<BR>\n" );
document.write( "y= 4 <BR>\n" );
document.write( "Let's plug both these numbers in the second equation:<BR>\n" );
document.write( "3(3)-4= 5 This is correct. Now the first equation:<BR>\n" );
document.write( "3+4=7 This is also correct. We have the correct answers.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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